The Washer,flat, cataloged under National Stock Number 5310-00-535-9718, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-535-9718 |
| Primary Part Number | 8520537 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Overall Diameter | 1.297 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-P-3115,TYPE PBE,CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC PHENOLIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.220 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN |
| Thickness | 0.031 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 |
|---|---|
| 8520537 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5310-00-535-9718 is a Washer,flat, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-535-9718 has 1 manufacturer part number on file: 8520537 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-632-5115. Verify interchangeability with system specifications before substitution.
Key specifications for 8520537: Overall Diameter: 1.297 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN; Material Document and Classification: MIL-P-3115,TYPE PBE,CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.