The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-366-8801, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5120-01-366-8801 |
| Item Name | Wrench,box and Open End,combinat |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Status | ACTIVE |
| Wrenching Surface Size | 0.938 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | OFFSET |
| Specification/standard Data | 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 2 TYPE AND 4 CLASS AND C STYLE |
| Wrenching End Offset Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Shape | 12 POINT SECOND END INTERNAL |
| Wrenching Surface Shape | OVAL FIRST END INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| Head Angle | 15.0 DEGREES NOMINAL |
| 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 |
| Reference | Meaning |
|---|---|
| CW30 | 5/9 Secondary reference Stanley Industrial & Automotive Llc |
| AS954 | 5/9 Secondary reference U.S. Government activity |
| AS954 TY2CL4STC | 5/1 Secondary reference U.S. Government activity |
| AS954 TY2CL4STA | 5/9 Secondary reference U.S. Government activity |
| CW30R | 5/9 Secondary reference Stanley Industrial & Automotive Llc |
| AS954 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5120-01-366-8801 is a Wrench,box and Open End,combinat, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4940-01-434-7767. Verify interchangeability with system specifications before substitution.
Key specifications for 5120-01-366-8801: Wrenching Surface Size: 0.938 INCHES NOMINAL BOTH ENDS IN; Style Designator: OFFSET; Overall Length: 11.125 INCHES NOMINAL IN; Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 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.