The Washer,flat, cataloged under National Stock Number 5310-01-089-8762, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-089-8762 |
| Primary Part Number | 13033905 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | MIL-STD-186,CODE 216 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.265 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-766,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 302 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.089 INCHES MINIMUM AND 0.099 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 |
|---|---|
| 13033905 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 13033905 | 5/9 Secondary reference Hewitt Inc |
NSN 5310-01-089-8762 is a Washer,flat, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-089-8762 has 1 manufacturer part number on file: 13033905 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-612-8064. Verify interchangeability with system specifications before substitution.
Key specifications for 13033905: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: MIL-STD-186,CODE 216 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.265 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-766,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 11 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.