The Socket,socket Wrench, cataloged under National Stock Number 5120-01-101-4216, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 10 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 | 5120-01-101-4216 |
| Primary Part Number | WS603-3 |
| Item Name | Socket,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Drive Surface Size | 0.250 INCHES NOMINAL SINGLE END IN |
| Wrenching Surface Size | 0.251 INCHES NOMINAL SINGLE END IN |
| Wrenching End Outside Diameter | 0.390 INCHES NOMINAL IN |
| Style Designator | INTERNAL-INTERNAL |
| Wrenching Surface Shape | SPLINE SINGLE END EXTERNAL |
| Drive End Shape | SQUARE SINGLE END EXTERNAL |
| Wrenching Surface Flute Quantity | 8 |
| Wrenching End Opening Depth | 0.265 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN |
| Drive End Outside Diameter | 0.440 INCHES NOMINAL IN |
| 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 |
|---|---|
| WS603-3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
NSN 5120-01-101-4216 is a Socket,socket Wrench, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-101-4216 has 1 manufacturer part number on file: WS603-3 (Howmet Global Fastening Systems Inc).
Key specifications for WS603-3: Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Wrenching Surface Size: 0.251 INCHES NOMINAL SINGLE END IN; Wrenching End Outside Diameter: 0.390 INCHES NOMINAL IN; Style Designator: INTERNAL-INTERNAL. 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.