The Washer,flat, cataloged under National Stock Number 5310-01-353-8286, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-353-8286 |
| Primary Part Number | 593-6405224 PIECE 127 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 2.438 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.656 INCHES NOMINAL IN |
| Thickness | 0.250 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 |
|---|---|
| 593-6405224 PIECE 127 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF7501-102-127 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 211038143 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5310-01-353-8286 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-353-8286 has 1 manufacturer part number on file: 593-6405224 PIECE 127 (Naval Sea Systems Command).
Key specifications for 593-6405224 PIECE 127: Overall Diameter: 2.438 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT; Material: STEEL OVERALL; Hole Diameter: 0.656 INCHES NOMINAL IN. 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.