The Washer,key, cataloged under National Stock Number 5310-01-003-9604, 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5 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-003-9604 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.013 INCHES NOMINAL IN |
| Material Thickness | 0.028 INCHES NOMINAL IN |
| Internal Prebent Key Length | 0.156 INCHES NOMINAL IN |
| Internal Key Quantity | 2 |
| Hole Diameter | 0.630 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 |
|---|---|
| 257105 | 5/9 Secondary reference Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| 257105 | 3/2 Design control — primary reference U.S. Government activity |
| 257105 | 5/9 Secondary reference Kidde-Fenwal, Llc |
| 257105 | 5/9 Secondary reference Sargent Aerospace a Dover Diversified Co |
NSN 5310-01-003-9604 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-003-9604: Internal Prebent Key Width: 0.013 INCHES NOMINAL IN; Material Thickness: 0.028 INCHES NOMINAL IN; Internal Prebent Key Length: 0.156 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.