The Washer,lock, cataloged under National Stock Number 5310-01-054-4651, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-054-4651 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-18317 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | DOME EXTERNAL AND INTERNAL TEETH |
| Outside Diameter | 0.277 INCHES MINIMUM AND 0.277 INCHES MINIMUM AND 0.297 INCHES MAXIMUM0.297 INCHES MAXIMUM IN |
| Material Thickness | 0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Material | COPPER ALLOY 11 OR COPPER ALLOY 230 OR COPPER ALLOY 240 OR COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 342 OR COPPER ALLOY 353 OR COPPER ALLOY 360 OR COPPER ALLOY 377 OVERALL |
| Hole Diameter | 0.091 INCHES MINIMUM AND 0.091 INCHES MINIMUM AND 0.096 INCHES MAXIMUM0.096 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 |
|---|---|
| MS17186-5 | 2/2 Government specification standardization U.S. Government activity |
| 2275336-0001 | 5/9 Secondary reference The Boeing Company Div Defense |
| 2275336-0001 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
NSN 5310-01-054-4651 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-054-4651: Surface Treatment Document and Classification: MIL-P-18317 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: DOME EXTERNAL AND INTERNAL TEETH; Outside Diameter: 0.277 INCHES MINIMUM AND 0.277 INCHES MINIMUM AND 0.297 INCHES MAXIMUM0.297 INCHES MAXIMUM IN; Material Thickness: 0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN. 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.