The Socket,socket Wrench, cataloged under National Stock Number 5120-01-255-5329, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-255-5329 |
| Primary Part Number | 1-OS-62A |
| Item Name | Socket,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Drive Surface Size | 0.637 INCHES NOMINAL SECOND END IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM |
| Wrenching Surface Size | 1.047 INCHES NOMINAL FIRST END IN |
| Wrenching End Outside Diameter | 1.047 INCHES NOMINAL IN |
| Wrenching Surface Shape | SPLINE SINGLE END EXTERNAL |
| Drive End Shape | HEXAGON SINGLE END EXTERNAL |
| Wrenching Surface Flute Quantity | 12 |
| Surface Treatment | OXIDE OR PHOSPHATE OVERALL |
| Drive End Outside Diameter | 0.637 INCHES NOMINAL IN |
| Material | STEEL COMP 8630H DRIVE SURFACE |
| 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 |
|---|---|
| 1-OS-62A PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| 1-OS-62B | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| 1-OS-62 | 5/9 Secondary reference Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
NSN 5120-01-255-5329 is a Socket,socket Wrench, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-255-5329 has 2 manufacturer part numbers on file: 1-OS-62A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 1-OS-62B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
Key specifications for 1-OS-62A: Drive Surface Size: 0.637 INCHES NOMINAL SECOND END IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM; Wrenching Surface Size: 1.047 INCHES NOMINAL FIRST END IN; Wrenching End Outside Diameter: 1.047 INCHES NOMINAL IN. 10 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.