The Washer,lock, cataloged under National Stock Number 5310-00-522-5801, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-522-5801 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | FLAT EXTERNAL AND INTERNAL TEETH |
| Outside Diameter | 0.688 INCHES NOMINAL IN |
| Material Thickness | 0.035 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.256 INCHES MINIMUM AND 0.267 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 |
|---|---|
| A193883 | 5/9 Secondary reference CAGE 00000 |
| 1872430 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 1872430 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
| 383449 | 5/9 Secondary reference White Motor Corp |
| 352449 | 3/9 Design control — primary reference White Motor Corp |
| 1872430 | C/1 Advisory reference — outside the item-of-supply concept Borgwarner Pds (anderson), L.l.c. |
| A225801 | 5/9 Secondary reference CAGE 00000 |
| 5225801 | 5/9 Secondary reference CAGE 00000 |
| 1872430 | 5/9 Secondary reference General Motors Corp |
NSN 5310-00-522-5801 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-522-5801: Style Designator: FLAT EXTERNAL AND INTERNAL TEETH; Outside Diameter: 0.688 INCHES NOMINAL IN; Material Thickness: 0.035 INCHES NOMINAL IN; Surface Treatment: CADMIUM OVERALL. 6 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.