The Washer,flat, cataloged under National Stock Number 5310-01-078-8533, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Simmonds Precision Products Inc. Government technical data includes 10 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 | 5310-01-078-8533 |
| Primary Part Number | S9532 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Simmonds Precision Products Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | NS177 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.545 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 303 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.381 INCHES MINIMUM AND 0.384 INCHES MAXIMUM 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 |
|---|---|
| S9532 PRIMARY | Simmonds Precision Products Inc (USA) |
NSN 5310-01-078-8533 is a Washer,flat, manufactured by Simmonds Precision Products Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-078-8533 has 1 manufacturer part number on file: S9532 (Simmonds Precision Products Inc).
Key specifications for S9532: Surface Treatment Document and Classification: NS177 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.545 INCHES NOMINAL IN; Material Document and Classification: QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.