# PROTO, 3/8 in Drive Size, 15 mm Socket Size, Flex Socket - 483J18|J5278MAS - Grainger

**Manufacturer:** PROTO  
**MPN:** `J5278MAS`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | PROTO |
| Manufacturer name | PROTO |
| Manufacturer | PROTO, Stanley Proto |
| DimensionUnit | inch |
| Hazmat | False |
| Extra Product Name | PROTO, 3/8 in Drive Size, 15 mm Socket Size, Flex Socket - 483J18\|J5278MAS - Grainger |
| length | 2.1875 |
| length_Attrib | Overall Length |
| moq | 1 |
| MPN | J5278MAS |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 483J18 |
| tierMinQty1 | 1 |
| tierPrice1 | 41.67 |
| Item? | 483J18 |
| Mfr Model? | J5278MAS |
| Socket Size | 15 mm |
| Socket Shape | 12-Point |
| Material | Alloy Steel |
| Finish | Chrome |
| Socket Depth | Standard |
| Drive Type | Hand |
| Drive Size | 3/8 in |
| Measurement Type | Metric |
| Impact Rated | No |
| Standards | AS4984A, ASME B107.110-2012, SAE AS955 |
| Number of Points | 12 |
| Overall Length | 2-3/16 in |
| Tether Ready | No |
| Product Type | Flex Socket |
| UNSPSC | 27111704 |
| Country of Origin | USA |
| ASIN | B07SZ93HM8 |
| AdultProduct | False |
| Amount | 42.31 |
| Asin | B07SZ93HM8 |
| Autographed | False |
| Batteries_required | False |
| Binding | Tools & Home Improvement |
| Brand | Proto |
| Bullet_point | 12-point socket, Full polish, Intermediate length gives additional reach without limiting accessibility in tight spaces, Metric; 12-Point, Star drive |
| ClassificationId | 2225089011 |
| Compatible_fastener_description | 0.375 inches |
| Currency | USD |
| CurrencyCode | USD |
| DisplayName | Triple Square Drive |
| Drive_system | Star |
| Finish_type | Polished |
| Height | 0.8, 1125, 500, 75 |
| Identifier | 00662679176709, 0662679176709, 662679176709 |
| IdentifierType | EAN, GTIN, UPC |
| IsBrandQuery | True |
| ItemClassification | BASE_PRODUCT |
| ItemName | Proto J5278MAS 3/8-inch Drive 15-millimeter 12-Point Intermediate Universal Joint Socket, (1 per Pack) |
| Item_name | Proto J5278MAS 3/8-inch Drive 15-millimeter 12-Point Intermediate Universal Joint Socket, (1 per Pack) |
| Item_package_quantity | 1 |
| Item_package_weight | 0.14 |
| Item_type_keyword | triple-square-drive-sockets |
| Item_type_name | Joint socket |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Grainger | 483J18 | 41.67 | 1 | None | 1 |
| Zoro | G7123897 | 26.96 | 1 | 13 | 1 |
| Applied Industrial | 117179131 |  |  | None | 1 |
| National Supply Network | 46126686 | 39.09 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/197000000/197348500/part_--J5278MAS---PROTO--2e2010b50d.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp