The Washer,flat, cataloged under National Stock Number 5310-01-710-6315, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Impact Racing, Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-710-6315 |
| Primary Part Number | 900065 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Impact Racing, Inc. |
| Status | ACTIVE |
| Overall Diameter | 2.440 INCHES NOMINAL IN |
| Special Test Features | MUST MEET 50.0 HOUR SALT SPRAY |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.440 INCHES NOMINAL IN |
| Thickness | 0.130 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 |
|---|---|
| 900065 PRIMARY | Impact Racing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4477312 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5310-01-710-6315 is a Washer,flat, manufactured by Impact Racing, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-710-6315 has 1 manufacturer part number on file: 900065 (Impact Racing, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4240-01-719-8193. Verify interchangeability with system specifications before substitution.
Key specifications for 900065: Overall Diameter: 2.440 INCHES NOMINAL IN; Special Test Features: MUST MEET 50.0 HOUR SALT SPRAY; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: CHROMATE ZINC OVERALL. 9 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.