The Washer,flat, cataloged under National Stock Number 5310-01-534-9924, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-534-9924 |
| Primary Part Number | 5486639 ITEM 145 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| Hole Diameter | 0.281 INCHES NOMINAL IN |
| Thickness | 0.065 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 |
| Part Number | Manufacturer |
|---|---|
| 5486639 ITEM 145 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5486639 ITEM 145 | 3/2 Design control — primary reference U.S. Government activity |
| 0.281IDX0.625ODX0.065 NICU | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-534-9924 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-534-9924 has 1 manufacturer part number on file: 5486639 ITEM 145 (Naval Sea Systems Command).
Key specifications for 5486639 ITEM 145: Overall Diameter: 0.625 INCHES NOMINAL IN; Special Features: DOCUMENT OR DRAWING NUMBER IS FF-W-92; End Item Identification: AC WINCH ASSY., DDS; Material: NICKEL ALLOY OVERALL. 4 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.