The Washer,flat, cataloged under National Stock Number 5310-01-126-3667, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-126-3667 |
| Primary Part Number | 13032571 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Width Across Flats | 23.620 INCHES NOMINAL IN |
| Length | 33.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| 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 | RECTANGULAR |
| Material | STEEL COMP 302 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 17.530 INCHES MINIMUM AND 17.660 INCHES MAXIMUM IN |
| Thickness | 1.590 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 |
|---|---|
| 13032571 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 13032571 | 5/1 Secondary reference Mbs Mfg Inc |
NSN 5310-01-126-3667 is a Washer,flat, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-126-3667 has 1 manufacturer part number on file: 13032571 (Us Army Aviation and Missile Command).
Key specifications for 13032571: Width Across Flats: 23.620 INCHES NOMINAL IN; Length: 33.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; 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.