The Washer,flat, cataloged under National Stock Number 5310-01-355-5345, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-355-5345 |
| Primary Part Number | 593-6405224 PIECE 129 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 2.813 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 304 OVERALL |
| Hole Diameter | 0.656 INCHES NOMINAL IN |
| Thickness | 0.060 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 129 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211038137 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-355-5345 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-355-5345 has 1 manufacturer part number on file: 593-6405224 PIECE 129 (Naval Sea Systems Command).
Key specifications for 593-6405224 PIECE 129: Overall Diameter: 2.813 INCHES NOMINAL IN; Material Document and Classification: QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT; Material: STEEL COMP 304 OVERALL. 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.