The Washer,flat, cataloged under National Stock Number 5310-00-662-0165, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Div Kingston Operations. Government technical data includes 12 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 | 5310-00-662-0165 |
| Primary Part Number | A7500 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Huck International, Inc. Div Kingston Operations |
| Status | ACTIVE |
| Surface Finish | 100.0 MICROINCHES TOP |
| Surface Finish | 100.0 MICROINCHES INNER |
| Surface Finish | 100.0 MICROINCHES OUTER |
| Surface Finish | 100.0 MICROINCHES BOTTOM |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.896 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN |
| Thickness | 0.125 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 |
|---|---|
| A7500 PRIMARY | Huck International, Inc. Div Kingston Operations (USA) |
NSN 5310-00-662-0165 is a Washer,flat, manufactured by Huck International, Inc. Div Kingston Operations, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-662-0165 has 1 manufacturer part number on file: A7500 (Huck International, Inc. Div Kingston Operations).
1 possible match (shared part number, not a government interchangeability claim): 5996-01-641-5296. Verify interchangeability with system specifications before substitution.
Key specifications for A7500: Surface Finish: 100.0 MICROINCHES TOP; Surface Finish: 100.0 MICROINCHES INNER; Surface Finish: 100.0 MICROINCHES OUTER; Surface Finish: 100.0 MICROINCHES BOTTOM. 12 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.