The Wrench,box, cataloged under National Stock Number 5120-00-274-9657, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Ampco Partners, Ltd. Dba Ampco Safety Tools. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-274-9657 |
| Primary Part Number | W-3170 |
| Item Name | Wrench,box |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Ampco Partners, Ltd. Dba Ampco Safety Tools |
| Status | ACTIVE |
| Wrenching Surface Shape | 12 POINT BOTH ENDS INTERNAL |
| Material | COPPER ALLOY OVERALL |
| Features Provided | NONMAGNETIC AND NONSPARKING |
| Wrenching End Offset Angle | 15.0 DEGREES NOMINAL |
| Style Designator | SHALLOW ANGULAR OFFSET DOUBLE HEAD |
| Special Markings | WRENCH SIZE |
| Wrenching Surface Size | 0.688 INCHES NOMINAL FIRST END IN |
| Wrenching Surface Size | 0.781 INCHES NOMINAL SECOND END IN |
| Small End Outside Diameter | 1.125 INCHES MAXIMUM IN |
| Large End Outside Diameter | 1.375 INCHES MAXIMUM IN |
| Large End Head Thickness | 0.594 INCHES MAXIMUM IN |
| Small End Head Thickness | 0.469 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-W-19928 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-W-19928 TY1 | General Services Administration Federal Supply Service (USA) |
| A-A-2490 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| W-3170 | Ampco Metal Inc. Dba Ampco Metal Inc (USA) |
| W-3170 PRIMARY | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
NSN 5120-00-274-9657 is a Wrench,box, manufactured by Ampco Partners, Ltd. Dba Ampco Safety Tools, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-274-9657 has 5 cross-referenced part numbers: MIL-W-19928 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-W-19928 TY1 (General Services Administration Federal Supply Service), A-A-2490 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), W-3170 (Ampco Metal Inc. Dba Ampco Metal Inc), W-3170 (Ampco Partners, Ltd. Dba Ampco Safety Tools).
There are 12 known substitutes for 5120-00-274-9657: 5120-00-184-8545, 5120-00-184-8547, 5120-00-184-8548 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for W-3170: Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL; Material: COPPER ALLOY OVERALL; Features Provided: NONMAGNETIC AND NONSPARKING; Wrenching End Offset Angle: 15.0 DEGREES NOMINAL. 13 total characteristics are documented in the Federal Logistics Information System.