The Washer,flat, cataloged under National Stock Number 5310-01-540-0970, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-540-0970 |
| Primary Part Number | 709-5486674 ITEM 037 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 0.688 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.260 INCHES NOMINAL IN |
| Thickness | 0.062 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 |
|---|---|
| 709-5486674 ITEM 037 PRIMARY | Naval Sea Systems Command (USA) |
| 0.688ODX0.260IDX0.062 CRES | Naval Sea Systems Command (USA) |
NSN 5310-01-540-0970 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-540-0970 has 2 manufacturer part numbers on file: 709-5486674 ITEM 037 (Naval Sea Systems Command), 0.688ODX0.260IDX0.062 CRES (Naval Sea Systems Command).
Key specifications for 709-5486674 ITEM 037: Overall Diameter: 0.688 INCHES NOMINAL IN; Special Features: DOCUMENT OR DRAWING NO. FF-W-92 TY A GR 1; End Item Identification: WINCH DECK SHELTER; Material: STEEL CORROSION RESISTING 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.