The Washer,flat, cataloged under National Stock Number 5310-01-699-3465, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-699-3465 |
| Primary Part Number | 8408775-033 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM B633, TYPE V OR VI ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Material Document and Classification | SAE AMS5046 AEROSPACE MATERIAL SPEC STD 1ST MATERIAL RESPONSE OR STM A109/A109M FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OR STEEL COMP 1137 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| Thickness | 0.059 INCHES MINIMUM AND 0.067 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 |
|---|---|
| 8408775-033 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 8408775 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5310-01-699-3465 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-699-3465 has 1 manufacturer part number on file: 8408775-033 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-707-0234, 5310-01-707-0236, 5310-01-709-1711. Verify interchangeability with system specifications before substitution.
Key specifications for 8408775-033: Surface Treatment Document and Classification: ASTM B633, TYPE V OR VI ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; Material Document and Classification: SAE AMS5046 AEROSPACE MATERIAL SPEC STD 1ST MATERIAL RESPONSE OR STM A109/A109M FED STD 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.