The Washer,lock, cataloged under National Stock Number 5310-01-090-2456, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-090-2456 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.155 INCHES NOMINAL IN |
| Material Thickness | 0.015 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.075 INCHES NOMINAL 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 |
|---|---|
| 50A935 | 5/9 Secondary reference Rosemount Inc Dba Fisher Rosemount Service and Support |
| 00050-0935 | 5/9 Secondary reference Rosemount Inc Dba Fisher Rosemount Service and Support |
| 00050-0935 | 3/9 Design control — primary reference Rosemount Aerospace Inc Dba Rosemount Aerospace Inc |
NSN 5310-01-090-2456 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-090-2456: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.155 INCHES NOMINAL IN; Material Thickness: 0.015 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 5 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.