The Washer,lock, cataloged under National Stock Number 5310-00-018-0447, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-018-0447 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Material Document and Classification | QQ-S-633,FS 1060 TO FS 1080-CANCELED FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.880 INCHES MINIMUM AND 0.924 INCHES MAXIMUM IN |
| Material Thickness | 0.055 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | A TYPE |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.512 INCHES MINIMUM AND 0.530 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 |
|---|---|
| BEAX3E1 | 5/9 Secondary reference CAGE 00000 |
| MILW6986TYPEA | 4/1 Identification reference U.S. Government activity |
| 34922S7 | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 180447 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 180447 | 3/9 Design control — primary reference General Motors Corp |
NSN 5310-00-018-0447 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4310-00-075-5254. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-018-0447: Style Designator: FLAT INTERNAL TEETH; Material Document and Classification: QQ-S-633,FS 1060 TO FS 1080-CANCELED FED SPEC ALL MATERIAL RESPONSES OVERALL; Outside Diameter: 0.880 INCHES MINIMUM AND 0.924 INCHES MAXIMUM IN; Material Thickness: 0.055 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN. 8 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.