The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-306-4501, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-306-4501 |
| Item Name | Crowfoot Attachment,socket Wrenc |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Status | ACTIVE |
| Drive Surface Size | 0.500 INCHES NOMINAL SINGLE END IN |
| Wrenching Surface Size | 2.375 INCHES NOMINAL SINGLE END IN |
| Style Designator | FLARE NUT |
| Opening Width | 1.630 INCHES MINIMUM IN |
| Specification/standard Data | 81343-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS AND C STYLE AND A DESIGN AND 2-3/8 SIZE |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Drive End Shape | SQUARE SINGLE END INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| Material | STEEL OVERALL |
| Head Thickness | 1.250 INCHES MAXIMUM IN |
| 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 |
|---|---|
| AS4167 TY1CL1STCDEA | 5/1 Secondary reference U.S. Government activity |
| AS4167 | 5/9 Secondary reference U.S. Government activity |
| AS4167 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5120-01-306-4501 is a Crowfoot Attachment,socket Wrenc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
Key specifications for 5120-01-306-4501: Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN; Wrenching Surface Size: 2.375 INCHES NOMINAL SINGLE END IN; Style Designator: FLARE NUT; Opening Width: 1.630 INCHES MINIMUM IN. 11 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.