The Wrench,open End, cataloged under National Stock Number 5120-00-203-4794, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5120-00-203-4794 |
| Primary Part Number | 1272 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Martin Sprocket and Gear Inc |
| Status | CANCELLED |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM |
| Material | STEEL OVERALL |
| Head Thickness | 0.312 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL AND CHROMIUM OVERALL |
| Wrenching Surface Size | 2.250 INCHES NOMINAL SINGLE END IN |
| Head Angle | 30.0 DEGREES NOMINAL |
| Torque Capacity | 2400.0 INCH-POUNDS MINIMUM IN |
| Wrenching Surface Shape | OVAL SINGLE END INTERNAL |
| Style Designator | SINGLE HEAD |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8139438 | Us Army Aviation and Missile Command (USA) |
| 1272 PRIMARY | Martin Sprocket and Gear Inc (USA) |
| 28-072 | Apex Tool Group, Llc Dba Nicholson (USA) |
| GGG-W-636 TY17CL3 | General Services Administration Federal Supply Service (USA) |
| 28-072 | Armstrong Bros Tool Co (USA) |
| 1272 | Bonney Forge Corp (USA) |
| 28-072 | Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA) |
| A-A-1353 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 1272 | Utica Tool Co Inc (USA) |
| GGG-W-636 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 22572 | Utica Tool Co Inc (USA) |
| 1472 | Wright Tool Company, Llc (USA) |
NSN 5120-00-203-4794 is a Wrench,open End, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.
NSN 5120-00-203-4794 has 12 cross-referenced part numbers: 8139438 (Us Army Aviation and Missile Command), 1272 (Martin Sprocket and Gear Inc), 28-072 (Apex Tool Group, Llc Dba Nicholson), GGG-W-636 TY17CL3 (General Services Administration Federal Supply Service), 28-072 (Armstrong Bros Tool Co) and 7 more.
There are 12 known substitutes for 5120-00-203-4794: 5845-00-096-2632, 3120-00-166-4794, 6250-00-224-6265 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1272: Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM; Material: STEEL OVERALL; Head Thickness: 0.312 INCHES MAXIMUM IN; Surface Treatment: NICKEL AND CHROMIUM OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 5120-00-203-4794 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.