The Wrench,socket, cataloged under National Stock Number 5120-01-159-2271, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-159-2271 |
| Primary Part Number | 971H |
| Item Name | Wrench,socket |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Martin Sprocket and Gear Inc |
| Status | ACTIVE |
| Wrenching Surface Size | 1.250 INCHES NOMINAL SINGLE END IN |
| Style Designator | SINGLE SOCKET T |
| Features Provided | REMOVABLE HANDLE |
| Wrenching Surface Shape | SQUARE SINGLE END INTERNAL |
| Surface Treatment | OXIDE OVERALL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 971H PRIMARY | Martin Sprocket and Gear Inc (USA) |
NSN 5120-01-159-2271 is a Wrench,socket, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-159-2271 has 1 manufacturer part number on file: 971H (Martin Sprocket and Gear Inc).
Key specifications for 971H: Wrenching Surface Size: 1.250 INCHES NOMINAL SINGLE END IN; Style Designator: SINGLE SOCKET T; Overall Length: 8.250 INCHES NOMINAL IN; Features Provided: REMOVABLE HANDLE. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.