The Wrench,box, cataloged under National Stock Number 5120-00-274-9661, 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 | 5120-00-274-9661 |
| Primary Part Number | W-3240 |
| Item Name | Wrench,box |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Ampco Partners, Ltd. Dba Ampco Safety Tools |
| Status | ACTIVE |
| Large End Outside Diameter | 1.672 INCHES MAXIMUM IN |
| Small End Head Thickness | 0.656 INCHES MAXIMUM IN |
| Wrenching Surface Shape | 12 POINT BOTH ENDS INTERNAL |
| Wrenching Surface Size | 1.000 INCHES NOMINAL FIRST END IN |
| Features Provided | NONMAGNETIC AND NONSPARKING |
| Wrenching End Offset Angle | 10.0 DEGREES MINIMUM AND 20.0 DEGREES MAXIMUM |
| Wrenching Surface Size | 1.125 INCHES NOMINAL SECOND END IN |
| Style Designator | SHALLOW ANGULAR OFFSET DOUBLE HEAD |
| Special Markings | WRENCH SIZE |
| Material | COPPER ALLOY OVERALL |
| Large End Head Thickness | 0.719 INCHES MAXIMUM IN |
| Small End Outside Diameter | 1.500 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A-A-2490 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| MIL-W-19928 TY1 | General Services Administration Federal Supply Service (USA) |
| MIL-W-19928 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| W-3240 | Ampco Metal Inc. Dba Ampco Metal Inc (USA) |
| W-3240 PRIMARY | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
NSN 5120-00-274-9661 is a Wrench,box, manufactured by Ampco Partners, Ltd. Dba Ampco Safety Tools, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-274-9661 has 5 cross-referenced part numbers: A-A-2490 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MIL-W-19928 TY1 (General Services Administration Federal Supply Service), MIL-W-19928 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), W-3240 (Ampco Metal Inc. Dba Ampco Metal Inc), W-3240 (Ampco Partners, Ltd. Dba Ampco Safety Tools).
There are 12 known substitutes for 5120-00-274-9661: 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-3240: Large End Outside Diameter: 1.672 INCHES MAXIMUM IN; Small End Head Thickness: 0.656 INCHES MAXIMUM IN; Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL; Wrenching Surface Size: 1.000 INCHES NOMINAL FIRST END IN. 13 total characteristics are documented in the Federal Logistics Information System.