The Extension,socket Wrench, cataloged under National Stock Number 5120-01-366-8713, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Stanley Industrial & Automotive Llc. Government technical data includes 7 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-366-8713 |
| Primary Part Number | X3E |
| Item Name | Extension,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Stanley Industrial & Automotive Llc |
| Status | ACTIVE |
| Drive Surface Size | 0.375 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | RIGID |
| Features Provided | MANUAL TOOL |
| Drive End Shape | SQUARE FIRST END INTERNAL |
| Drive End Shape | SQUARE SECOND END EXTERNAL |
| Surface Treatment | CHROMIUM 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 |
|---|---|
| X3E PRIMARY | Stanley Industrial & Automotive Llc (USA) |
NSN 5120-01-366-8713 is a Extension,socket Wrench, manufactured by Stanley Industrial & Automotive Llc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-366-8713 has 1 manufacturer part number on file: X3E (Stanley Industrial & Automotive Llc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-685-1310. Verify interchangeability with system specifications before substitution.
Key specifications for X3E: Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN; Style Designator: RIGID; Overall Length: 3.000 INCHES NOMINAL IN; Features Provided: MANUAL TOOL. 7 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.