{"v":"2.0","page_type":"product","title":"S-7521-SPRT","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"HAMILTON","href":"/python/html6/menu_brand_products/1000/72000/menu_brand_products_Hamilton_1_e68c6b5f5c.html"},{"label":"S-7521-SPRT","href":null}],"content":{"product":{"mpn":"S-7521-SPRT","manufacturer":"HAMILTON","brand":"HAMILTON","brand_url":"/python/html6/menu_brand_products/1000/72000/menu_brand_products_Hamilton_1_e68c6b5f5c.html","title":"S-7521-SPRT","description":"","attributes":[{"name":"Brand name","values":[{"value":"HAMILTON","url":"/python/html6/menu_attr_pair/1000/202000000/202296000/menu_attr_pair_Brandname_HAMILTON_1_53ccbb4185.html"}],"name_url":"/python/html6/menu_attr_pair/1000/202000000/202296000/menu_attr_pair_Brandname_HAMILTON_1_53ccbb4185.html"},{"name":"Manufacturer name","values":[{"value":"HAMILTON","url":"/python/html6/menu_attr_pair/1000/185000000/185328000/menu_attr_pair_Manufacturername_HAMILTON_1_73b810105c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/185000000/185328000/menu_attr_pair_Manufacturername_HAMILTON_1_73b810105c.html"},{"name":"Manufacturer","values":[{"value":"HAMILTON","url":"/python/html6/menu_attr_pair/1000/45000000/45445000/menu_attr_pair_Manufacturer_HAMILTON_1_2dc80008b0.html"},{"value":"Hamilton","url":"/python/html6/menu_attr_pair/1000/45000000/45445000/menu_attr_pair_Manufacturer_Hamilton_1_63a9845d1a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/45000000/45445000/menu_attr_pair_Manufacturer_HAMILTON_1_2dc80008b0.html"},{"name":"DimensionUnit","values":[{"value":"inch","url":"/python/html6/menu_attr_pair/1000/10000000/10300000/menu_attr_pair_DimensionUnit_inch_1_f16129611b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/10000000/10300000/menu_attr_pair_DimensionUnit_inch_1_f16129611b.html"},{"name":"WeightUnit","values":[{"value":"lbs","url":"/python/html6/menu_attr_pair/1000/60000000/60642000/menu_attr_pair_WeightUnit_lbs_1_dce479c2aa.html"}],"name_url":"/python/html6/menu_attr_pair/1000/60000000/60642000/menu_attr_pair_WeightUnit_lbs_1_dce479c2aa.html"},{"name":"deadPage","values":[{"value":"True","url":"/python/html6/menu_attr_pair/1000/10000000/10935000/menu_attr_pair_deadPage_True_1_a795fa66bb.html"}],"name_url":"/python/html6/menu_attr_pair/1000/10000000/10935000/menu_attr_pair_deadPage_True_1_a795fa66bb.html"},{"name":"extendedQty","values":[{"value":"0","url":"/python/html6/menu_attr_pair/1000/84000000/84797000/menu_attr_pair_extendedQty_0_1_c3f7aa57d4.html"}],"name_url":"/python/html6/menu_attr_pair/1000/84000000/84797000/menu_attr_pair_extendedQty_0_1_c3f7aa57d4.html"},{"name":"item","values":[{"value":"{'brand': {'name': 'HAMILTON'}}","url":"/python/html6/menu_attr_pair/1000/196000000/196111000/menu_attr_pair_item_brandnameHAMILTON_1_2f626dc97c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/196000000/196111000/menu_attr_pair_item_brandnameHAMILTON_1_2f626dc97c.html"},{"name":"moq","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"},{"name":"MPN","values":[{"value":"S-7521-SPRT","url":"/python/html6/menu_attr_pair/1000/85000000/85692000/menu_attr_pair_MPN_S7521SPRT_1_0a649165ff.html"}],"name_url":"/python/html6/menu_attr_pair/1000/85000000/85692000/menu_attr_pair_MPN_S7521SPRT_1_0a649165ff.html"},{"name":"multiple","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"},{"name":"qtyInStock","values":[{"value":"0","url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"}],"name_url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"},{"name":"url","values":[{"value":"https://www.zoro.com/hamilton-swivel-caster-7500-21-solid-pneumatic-s-7521-sprt/i/G9087841/","url":"/python/html6/menu_attr_pair/1000/172000000/172161000/menu_attr_pair_url_httpswwwzorocomhamiltonswivelcaster750021s_1_e4ae012cd7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/172000000/172161000/menu_attr_pair_url_httpswwwzorocomhamiltonswivelcaster750021s_1_e4ae012cd7.html"},{"name":"AdultProduct","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/135000000/135074000/menu_attr_pair_AdultProduct_False_1_c6441ece7c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/135000000/135074000/menu_attr_pair_AdultProduct_False_1_c6441ece7c.html"},{"name":"Asin","values":[{"value":"B00UVPSD9E","url":"/python/html6/menu_attr_pair/1000/12000000/12446000/menu_attr_pair_Asin_B00UVPSD9E_1_a5733135c3.html"}],"name_url":"/python/html6/menu_attr_pair/1000/12000000/12446000/menu_attr_pair_Asin_B00UVPSD9E_1_a5733135c3.html"},{"name":"Autographed","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/11000000/11389000/menu_attr_pair_Autographed_False_1_3dfa18ce7d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/11000000/11389000/menu_attr_pair_Autographed_False_1_3dfa18ce7d.html"},{"name":"Brand","values":[{"value":"Hamilton","url":"/python/html6/menu_attr_pair/1000/164000000/164528000/menu_attr_pair_Brand_Hamilton_1_128e4fe50d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164528000/menu_attr_pair_Brand_Hamilton_1_128e4fe50d.html"},{"name":"Bullet_point","values":[{"value":"Capacity: 4200 lbs.","url":"/python/html6/menu_attr_pair/1000/102000000/102470000/menu_attr_pair_Bulletpoint_Capacity4200lbs_1_bd3d67d0c1.html"},{"value":"Overall Height: 24\"","url":"/python/html6/menu_attr_pair/1000/226000000/226725000/menu_attr_pair_Bulletpoint_OverallHeight24_1_561ba0e564.html"},{"value":"Wheel Dia.xW: 21x6\"","url":"/python/html6/menu_attr_pair/1000/263000000/263721000/menu_attr_pair_Bulletpoint_WheelDiaxW21x6_1_09595d4582.html"}],"name_url":"/python/html6/menu_attr_pair/1000/102000000/102470000/menu_attr_pair_Bulletpoint_Capacity4200lbs_1_bd3d67d0c1.html"},{"name":"ClassificationId","values":[{"value":"511228","url":"/python/html6/menu_attr_pair/1000/184000000/184727000/menu_attr_pair_ClassificationId_511228_1_5a2ec4fd43.html"}],"name_url":"/python/html6/menu_attr_pair/1000/184000000/184727000/menu_attr_pair_ClassificationId_511228_1_5a2ec4fd43.html"},{"name":"DisplayName","values":[{"value":"Hardware","url":"/python/html6/menu_attr_pair/1000/62000000/62361000/menu_attr_pair_DisplayName_Hardware_1_afcfc2e55b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/62000000/62361000/menu_attr_pair_DisplayName_Hardware_1_afcfc2e55b.html"},{"name":"Height","values":[{"value":"1000","url":"/python/html6/menu_attr_pair/1000/182000000/182950000/menu_attr_pair_Height_1000_1_df0c91e8b6.html"},{"value":"24.0","url":"/python/html6/menu_attr_pair/1000/247000000/247590000/menu_attr_pair_Height_240_1_fbd822da49.html"},{"value":"500","url":"/python/html6/menu_attr_pair/1000/82000000/82433000/menu_attr_pair_Height_500_1_e800e4b696.html"},{"value":"6.0","url":"/python/html6/menu_attr_pair/1000/243000000/243834000/menu_attr_pair_Height_60_1_3cbf63df8d.html"},{"value":"75","url":"/python/html6/menu_attr_pair/1000/263000000/263862000/menu_attr_pair_Height_75_1_a0092a3e31.html"}],"name_url":"/python/html6/menu_attr_pair/1000/182000000/182950000/menu_attr_pair_Height_1000_1_df0c91e8b6.html"},{"name":"ItemClassification","values":[{"value":"BASE_PRODUCT","url":"/python/html6/menu_attr_pair/1000/174000000/174108000/menu_attr_pair_ItemClassification_BASEPRODUCT_1_21c06575b2.html"}],"name_url":"/python/html6/menu_attr_pair/1000/174000000/174108000/menu_attr_pair_ItemClassification_BASEPRODUCT_1_21c06575b2.html"},{"name":"ItemName","values":[{"value":"Hamilton Heavy Duty Ground Support Caster - 21\"Dia.X6\"W Wheel - Swivel","url":"/python/html6/menu_attr_pair/1000/105000000/105475000/menu_attr_pair_ItemName_HamiltonHeavyDutyGroundSupportCaster21DiaX_1_16468410a6.html"}],"name_url":"/python/html6/menu_attr_pair/1000/105000000/105475000/menu_attr_pair_ItemName_HamiltonHeavyDutyGroundSupportCaster21DiaX_1_16468410a6.html"},{"name":"Item_name","values":[{"value":"Hamilton Heavy Duty Ground Support Caster - 21\"Dia.X6\"W Wheel - Swivel","url":"/python/html6/menu_attr_pair/1000/196000000/196947000/menu_attr_pair_Itemname_HamiltonHeavyDutyGroundSupportCaster21DiaX_1_52924806b7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/196000000/196947000/menu_attr_pair_Itemname_HamiltonHeavyDutyGroundSupportCaster21DiaX_1_52924806b7.html"},{"name":"Item_package_weight","values":[{"value":"126.0","url":"/python/html6/menu_attr_pair/1000/136000000/136295000/menu_attr_pair_Itempackageweight_1260_1_49effc7428.html"}],"name_url":"/python/html6/menu_attr_pair/1000/136000000/136295000/menu_attr_pair_Itempackageweight_1260_1_49effc7428.html"},{"name":"Item_type_keyword","values":[{"value":"plate-casters","url":"/python/html6/menu_attr_pair/1000/181000000/181848000/menu_attr_pair_Itemtypekeyword_platecasters_1_f0e639c619.html"}],"name_url":"/python/html6/menu_attr_pair/1000/181000000/181848000/menu_attr_pair_Itemtypekeyword_platecasters_1_f0e639c619.html"},{"name":"Item_weight","values":[{"value":"126.0","url":"/python/html6/menu_attr_pair/1000/252000000/252406000/menu_attr_pair_Itemweight_1260_1_0d17b3949c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/252000000/252406000/menu_attr_pair_Itemweight_1260_1_0d17b3949c.html"},{"name":"Length","values":[{"value":"0.0","url":"/python/html6/menu_attr_pair/1000/68000000/68646000/menu_attr_pair_Length_00_1_0ba4e7d255.html"},{"value":"21.0","url":"/python/html6/menu_attr_pair/1000/167000000/167414000/menu_attr_pair_Length_210_1_220b782e81.html"},{"value":"24.0","url":"/python/html6/menu_attr_pair/1000/4000000/4766000/menu_attr_pair_Length_240_1_c2814c9d7d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/68000000/68646000/menu_attr_pair_Length_00_1_0ba4e7d255.html"},{"name":"Link","values":[{"value":"https://m.media-amazon.com/images/I/418n9d6LWhL._SL75_.jpg","url":"/python/html6/menu_attr_pair/1000/31000000/31772000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI418n9d6LWhLSL75_1_b3c6959d5b.html"},{"value":"https://m.media-amazon.com/images/I/418n9d6LWhL.jpg","url":"/python/html6/menu_attr_pair/1000/141000000/141902000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI418n9d6LWhLjpg_1_80d70c909f.html"},{"value":"https://m.media-amazon.com/images/I/61ZH8P5zSSL.jpg","url":"/python/html6/menu_attr_pair/1000/257000000/257795000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI61ZH8P5zSSLjpg_1_6cdfe01fae.html"}],"name_url":"/python/html6/menu_attr_pair/1000/31000000/31772000/menu_attr_pair_Link_httpsmmediaamazoncomimagesI418n9d6LWhLSL75_1_b3c6959d5b.html"},{"name":"Memorabilia","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/184000000/184136000/menu_attr_pair_Memorabilia_False_1_903cccc9ba.html"}],"name_url":"/python/html6/menu_attr_pair/1000/184000000/184136000/menu_attr_pair_Memorabilia_False_1_903cccc9ba.html"},{"name":"ModelNumber","values":[{"value":"S-7521-SPRT","url":"/python/html6/menu_attr_pair/1000/60000000/60890000/menu_attr_pair_ModelNumber_S7521SPRT_1_4b63ecc073.html"}],"name_url":"/python/html6/menu_attr_pair/1000/60000000/60890000/menu_attr_pair_ModelNumber_S7521SPRT_1_4b63ecc073.html"},{"name":"Model_number","values":[{"value":"S-7521-SPRT","url":"/python/html6/menu_attr_pair/1000/247000000/247160000/menu_attr_pair_Modelnumber_S7521SPRT_1_71bf665440.html"}],"name_url":"/python/html6/menu_attr_pair/1000/247000000/247160000/menu_attr_pair_Modelnumber_S7521SPRT_1_71bf665440.html"},{"name":"Number_of_items","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/257000000/257380000/menu_attr_pair_Numberofitems_1_1_59f97e6de0.html"}],"name_url":"/python/html6/menu_attr_pair/1000/257000000/257380000/menu_attr_pair_Numberofitems_1_1_59f97e6de0.html"},{"name":"PartNumber","values":[{"value":"S-7521-SPRT","url":"/python/html6/menu_attr_pair/1000/61000000/61046000/menu_attr_pair_PartNumber_S7521SPRT_1_5af679e482.html"}],"name_url":"/python/html6/menu_attr_pair/1000/61000000/61046000/menu_attr_pair_PartNumber_S7521SPRT_1_5af679e482.html"},{"name":"Part_number","values":[{"value":"S-7521-SPRT","url":"/python/html6/menu_attr_pair/1000/152000000/152955000/menu_attr_pair_Partnumber_S7521SPRT_1_6b02e12cde.html"}],"name_url":"/python/html6/menu_attr_pair/1000/152000000/152955000/menu_attr_pair_Partnumber_S7521SPRT_1_6b02e12cde.html"},{"name":"ProductType","values":[{"value":"INDUSTRIAL_CASTERS","url":"/python/html6/menu_attr_pair/1000/112000000/112384000/menu_attr_pair_ProductType_INDUSTRIALCASTERS_1_8e1ad8fbf3.html"}],"name_url":"/python/html6/menu_attr_pair/1000/112000000/112384000/menu_attr_pair_ProductType_INDUSTRIALCASTERS_1_8e1ad8fbf3.html"},{"name":"Product_description","values":[{"value":"The ultimate marriage of a heavy duty solid pneumatic tire with HamiltonaTMs premium forged steel swivel caster technology. This series is ideally suited for heavy duty ground support applications. All wheels are equipped with 1\" or 1-1/4\" precision tapered roller bearings making them well suited for Ground Support towing applications.","url":"/python/html6/menu_attr_pair/1000/71000000/71998000/menu_attr_pair_Productdescription_Theultimatemarriageofaheavydutysolidpneuma_1_1390c729ed.html"}],"name_url":"/python/html6/menu_attr_pair/1000/71000000/71998000/menu_attr_pair_Productdescription_Theultimatemarriageofaheavydutysolidpneuma_1_1390c729ed.html"},{"name":"Product_site_launch_date","values":[{"value":"2015-03-18T15:04:04.275Z","url":"/python/html6/menu_attr_pair/1000/165000000/165758000/menu_attr_pair_Productsitelaunchdate_20150318T150404275Z_1_6a72b9d3a6.html"}],"name_url":"/python/html6/menu_attr_pair/1000/165000000/165758000/menu_attr_pair_Productsitelaunchdate_20150318T150404275Z_1_6a72b9d3a6.html"},{"name":"TradeInEligible","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/5000000/5271000/menu_attr_pair_TradeInEligible_False_1_25846a63db.html"}],"name_url":"/python/html6/menu_attr_pair/1000/5000000/5271000/menu_attr_pair_TradeInEligible_False_1_25846a63db.html"},{"name":"Unit","values":[{"value":"inches","url":"/python/html6/menu_attr_pair/1000/45000000/45712000/menu_attr_pair_Unit_inches_1_c49b8ab96a.html"},{"value":"pounds","url":"/python/html6/menu_attr_pair/1000/148000000/148518000/menu_attr_pair_Unit_pounds_1_62a7fa2d77.html"}],"name_url":"/python/html6/menu_attr_pair/1000/45000000/45712000/menu_attr_pair_Unit_inches_1_c49b8ab96a.html"},{"name":"Variant","values":[{"value":"MAIN","url":"/python/html6/menu_attr_pair/1000/40000000/40436000/menu_attr_pair_Variant_MAIN_1_b26e0d62c8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/40000000/40436000/menu_attr_pair_Variant_MAIN_1_b26e0d62c8.html"},{"name":"WebsiteDisplayGroup","values":[{"value":"biss_basic_display_on_website","url":"/python/html6/menu_attr_pair/1000/57000000/57880000/menu_attr_pair_WebsiteDisplayGroup_bissbasicdisplayonwebsite_1_b542bd740e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/57000000/57880000/menu_attr_pair_WebsiteDisplayGroup_bissbasicdisplayonwebsite_1_b542bd740e.html"},{"name":"WebsiteDisplayGroupName","values":[{"value":"BISS Basic","url":"/python/html6/menu_attr_pair/1000/75000000/75339000/menu_attr_pair_WebsiteDisplayGroupName_BISSBasic_1_963559e62f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/75000000/75339000/menu_attr_pair_WebsiteDisplayGroupName_BISSBasic_1_963559e62f.html"},{"name":"Weight","values":[{"value":"126.0","url":"/python/html6/menu_attr_pair/1000/174000000/174566000/menu_attr_pair_Weight_1260_1_18059189b1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/174000000/174566000/menu_attr_pair_Weight_1260_1_18059189b1.html"},{"name":"Width","values":[{"value":"0.0","url":"/python/html6/menu_attr_pair/1000/83000000/83796000/menu_attr_pair_Width_00_1_0084257ff2.html"},{"value":"1000","url":"/python/html6/menu_attr_pair/1000/85000000/85183000/menu_attr_pair_Width_1000_1_3bb9579044.html"},{"value":"21.0","url":"/python/html6/menu_attr_pair/1000/177000000/177486000/menu_attr_pair_Width_210_1_8c61da6649.html"},{"value":"500","url":"/python/html6/menu_attr_pair/1000/61000000/61456000/menu_attr_pair_Width_500_1_2675d694cc.html"},{"value":"6.0","url":"/python/html6/menu_attr_pair/1000/52000000/52676000/menu_attr_pair_Width_60_1_647dfaf3ab.html"},{"value":"75","url":"/python/html6/menu_attr_pair/1000/211000000/211376000/menu_attr_pair_Width_75_1_1e3c47751f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/83000000/83796000/menu_attr_pair_Width_00_1_0084257ff2.html"}],"images":[],"distributors":[{"name":"Zoro","sku":"G9087841","url":"https://www.zoro.com/hamilton-swivel-caster-7500-21-solid-pneumatic-s-7521-sprt/i/G9087841/","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/1312d194-8a97-4385-a84f-21ce86b2a3d1"},{"name":"motionindustries.com","sku":"05866613","url":"https://www.motionindustries.com/productDetail.jsp?sku=05866613","pricing":[{"quantity":1,"price_usd":1734.1}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"National Supply Network","sku":"1874902","url":"https://www.nationalsupplynetwork.com/S-7521-SPRT-Hamilton-Casters-1874902.aspx","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1}],"amazon":{"available":true,"products":[{"asin":"B00UVPSD9E","title":"Hamilton Heavy Duty Ground Support Caster - 21\"Dia.X6\"W Wheel - Swivel","brand":"Hamilton","image":"","url":"https://www.amazon.com/dp/B00UVPSD9E?tag=atariguidz09-20","description":"The ultimate marriage of a heavy duty solid pneumatic tire with HamiltonaTMs premium forged steel swivel caster technology. This series is ideally suited for heavy duty ground support applications. All wheels are equipped with 1\" or 1-1/4\" precision tapered roller bearings making them well suited for Ground Support towing applications.","features":["Wheel Dia.xW: 21x6\"","Capacity: 4200 lbs.","Overall Height: 24\""]}]},"metadata":{"generated_date":"2026-09-16","last_updated":"2026-09-16","data_sources":["National Supply Network","Zoro","motionindustries.com","Amazon"],"completeness":0.95,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}