The Wrench,open End, cataloged under National Stock Number 5120-00-277-1261, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 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 | 5120-00-277-1261 |
| Primary Part Number | 31-012 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Apex Tool Group, Llc Dba Nicholson |
| Status | ACTIVE |
| Head Thickness | 0.266 INCHES MAXIMUM IN |
| Wrenching Surface Shape | OVAL SINGLE END INTERNAL |
| Wrenching Surface Size | 0.375 INCHES NOMINAL SINGLE END IN |
| Style Designator | SINGLE HEAD |
| Surface Treatment | CHROMIUM OVERALL |
| Head Angle | 15.0 DEGREES NOMINAL |
| Torque Capacity | 540.0 INCH-POUNDS MINIMUM IN |
| Material | STEEL OVERALL |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 31-012 | Apex Tool Group, Llc Dba Nicholson (USA) |
| GGG-W-636 TY5 | General Services Administration Federal Supply Service (USA) |
| 31-012 | Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA) |
| 31-012 | Armstrong Bros Tool Co (USA) |
| A-A-1357 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 894-3-8 | Gedore Werkzeugfabrik Gmbh & Co. Kg (DEU) |
| GGG-W-636 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5120-00-277-1261 is a Wrench,open End, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-277-1261 has 7 cross-referenced part numbers: 31-012 (Apex Tool Group, Llc Dba Nicholson), GGG-W-636 TY5 (General Services Administration Federal Supply Service), 31-012 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 31-012 (Armstrong Bros Tool Co), A-A-1357 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 2 more.
There are 12 known substitutes for 5120-00-277-1261: 4820-00-073-9650, 5935-00-149-4055, 5935-00-166-9989 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 31-012: Head Thickness: 0.266 INCHES MAXIMUM IN; Wrenching Surface Shape: OVAL SINGLE END INTERNAL; Wrenching Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Style Designator: SINGLE HEAD. 11 total characteristics are documented in the Federal Logistics Information System.