# Rigid Caster 300 3-1/2X1-3/8 Poly-Tech

**Manufacturer:** Hamilton  
**MPN:** `R-303-1/2-NF`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Hamilton |
| Manufacturer name | Hamilton |
| Manufacturer | Hamilton, Hamilton Caster & Mfg. Co. |
| CategoryId | 6740 |
| DimensionUnit | inch |
| GraingerSku | R-303-1/2-NF |
| Extra Product Name | Rigid Caster 300 3-1/2X1-3/8 Poly-Tech |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 2, 2.1 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | CN |
| extendedLead | 9 |
| extendedQty | -2 |
| height | 1 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1 |
| moq | 1 |
| MPN | R-303-1/2-NF |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G0655895 |
| tierMinQty1 | 1 |
| tierPrice1 | 27.00 |
| url | https://www.zoro.com/hamilton-rigid-caster-300-3-12x1-38-poly-tech-r-303-12-nf/i/G0655895/ |
| width | 1 |
| Wheel Dia | 3 1/2 in |
| Wheel Width | 1 3/8 in |
| Mounting Plate Size | 2 3/4 in x 3 3/4 in |
| Mounting Height | 4 13/16 in |
| Mounting Bolt Dia | 5/16 in |
| Caster Sub-Type | Rigid |
| Number of Wheels | 1 |
| Wheel/Tread Material | Polyurethane |
| Wheel Bearing Type | Precision Ball |
| Mounting Plate Bolt Hole Pattern | D |
| Thread Guards | No |
| Caster Product Group | Rigid Caster |
| Item | Plate Caster |
| Includes Thread Guards | No |
| Outside Bolt Hole Spacing | 1-3/4 in x 3 in |
| Caster Brake Type | No Brake Included |
| Wheel/Tread Hardness | 90 Shore A |
| Wheel/Tread Hardness Rating | Firm |
| Number of Mounting Holes | 4 |
| Swivel Construction | Kingpin |
| Caster Frame Material | Steel |
| Non-Marking | Yes |
| Inside Bolt Hole Spacing | 1-3/4 in x 2-7/8 in |
| ASIN | B075JNPTXV |
| AdultProduct | False |
| Asin | B075JNPTXV |
| Autographed | False |
| Batteries_required | False |
| Binding | Misc. |
| Brand | Hamilton |
| Bullet_point | For the past 100 years, we've earned a reputation for building the industry's most durable casters and wheels, Manufactured in china, The economic" kingpin less caster featured an unconventional upper |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G0655895 | 27.0 | 1 | None | 1 |
| motionindustries.com | 01062263 | 37.45 | 1 | None | 1 |
| National Supply Network | B357594 | 29.32 | 1 | None | 1 |
| Zoro | G704872894 | 51.0 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/231000000/231199000/part_--R30312NF---Hamilton--00a441e5b0.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp