The Wrench,open End, cataloged under National Stock Number 5120-00-203-4800, 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 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5120-00-203-4800 |
| Primary Part Number | 1258 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Martin Sprocket and Gear Inc |
| Status | CANCELLED |
| Style Designator | SINGLE HEAD |
| Wrenching Surface Size | 1.812 INCHES NOMINAL SINGLE END IN |
| Material | STEEL OVERALL |
| Head Angle | 30.0 DEGREES NOMINAL |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM |
| Surface Treatment | NICKEL AND CHROMIUM OVERALL |
| Head Thickness | 0.312 INCHES MAXIMUM IN |
| Torque Capacity | 2400.0 INCH-POUNDS MINIMUM IN |
| Wrenching Surface Shape | OVAL SINGLE END INTERNAL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| GGG-W-636 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| A-A-1353 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 1258 | Utica Tool Co Inc (USA) |
| GGG-W-636 TY17CL3 | General Services Administration Federal Supply Service (USA) |
| 1258 PRIMARY | Martin Sprocket and Gear Inc (USA) |
NSN 5120-00-203-4800 is a Wrench,open End, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.
NSN 5120-00-203-4800 has 5 cross-referenced part numbers: GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-1353 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 1258 (Utica Tool Co Inc), GGG-W-636 TY17CL3 (General Services Administration Federal Supply Service), 1258 (Martin Sprocket and Gear Inc).
There are 12 known substitutes for 5120-00-203-4800: 5960-00-004-1959, 5962-00-186-8515, 5977-00-239-4090 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1258: Style Designator: SINGLE HEAD; Wrenching Surface Size: 1.812 INCHES NOMINAL SINGLE END IN; Material: STEEL OVERALL; Head Angle: 30.0 DEGREES NOMINAL. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 5120-00-203-4800 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.