The Washer,shouldered, cataloged under National Stock Number 5310-01-088-9375, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Aar Allen Services, Inc Dba Aar Component Services Wellington. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-088-9375 |
| Primary Part Number | 502329-1 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Aar Allen Services, Inc Dba Aar Component Services Wellington |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Height | 0.090 INCHES NOMINAL IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN |
| Material Thickness | 0.015 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 416 OVERALL |
| Hole Diameter | 0.317 INCHES MINIMUM AND 0.325 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 |
|---|---|
| 502329-1 PRIMARY | Aar Allen Services, Inc Dba Aar Component Services Wellington (USA) |
NSN 5310-01-088-9375 is a Washer,shouldered, manufactured by Aar Allen Services, Inc Dba Aar Component Services Wellington, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-088-9375 has 1 manufacturer part number on file: 502329-1 (Aar Allen Services, Inc Dba Aar Component Services Wellington).
Key specifications for 502329-1: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Height: 0.090 INCHES NOMINAL IN; Style Designator: SHOULDERED; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.