The Washer,flat, cataloged under National Stock Number 5310-01-528-4731, 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 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-528-4731 |
| Primary Part Number | 7592707 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.600 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.120 INCHES NOMINAL IN |
| Thickness | 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM 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 |
|---|---|
| 7592707 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-528-4731 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-528-4731 has 1 manufacturer part number on file: 7592707 (Naval Sea Systems Command).
Key specifications for 7592707: Surface Treatment Document and Classification: ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.600 INCHES NOMINAL IN; Material Document and Classification: ASTM A240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Special Features: MARK 53711-7592707 ON PACKAGE RO CONTAINER IN ACCORDANCE WITH MIL-STD-130. DO NOT MARK PART. 8 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.