The Wrench,open End, cataloged under National Stock Number 5120-00-277-1247, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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 | 5120-00-277-1247 |
| Primary Part Number | 8A |
| 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 55.0 ROCKWELL C MAXIMUM |
| Head Thickness | 0.750 INCHES MAXIMUM IN |
| Surface Treatment | ENAMEL AND CHROMIUM OVERALL |
| Head Angle | 15.0 DEGREES NOMINAL |
| Environmental Attribute Code | PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT |
| Torque Capacity | 9450.0 INCH-POUNDS MINIMUM IN |
| Style Designator | SINGLE HEAD |
| Material | STEEL OVERALL |
| Wrenching Surface Size | 1.312 INCHES NOMINAL SINGLE END IN |
| Wrenching Surface Shape | OVAL SINGLE END INTERNAL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8A | Martin Sprocket and Gear Inc (USA) |
| A-A-1357 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 30-0370 | Martin Sprocket and Gear Inc (USA) |
| GGG-W-636 TY5 | General Services Administration Federal Supply Service (USA) |
| GGG-W-636 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 8A | Trw Inc Hand Tools Div Trw Industrial Products Group (USA) |
NSN 5120-00-277-1247 is a Wrench,open End, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.
NSN 5120-00-277-1247 has 6 cross-referenced part numbers: 8A (Martin Sprocket and Gear Inc), A-A-1357 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 30-0370 (Martin Sprocket and Gear Inc), GGG-W-636 TY5 (General Services Administration Federal Supply Service), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC) and 1 more.
There are 12 known substitutes for 5120-00-277-1247: 2540-00-054-0024, 5130-00-126-3217, 4820-00-164-3377 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8A: Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM; Head Thickness: 0.750 INCHES MAXIMUM IN; Surface Treatment: ENAMEL AND CHROMIUM OVERALL; Head Angle: 15.0 DEGREES NOMINAL. 12 total characteristics are documented in the Federal Logistics Information System.
NSN 5120-00-277-1247 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.