The Washer,spring Tension, cataloged under National Stock Number 5310-01-476-5346, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Starr Aircraft Products Inc. Government technical data includes 6 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 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 | 5310-01-476-5346 |
| Primary Part Number | 2-W-WASHER |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Starr Aircraft Products Inc |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Material Thickness | 0.010 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Material | COBALT ALLOY OVERALL |
| Hole Diameter | 0.199 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 |
|---|---|
| 2-W-WASHER PRIMARY | Starr Aircraft Products Inc (USA) |
NSN 5310-01-476-5346 is a Washer,spring Tension, manufactured by Starr Aircraft Products Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-476-5346 has 1 manufacturer part number on file: 2-W-WASHER (Starr Aircraft Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-533-5129. Verify interchangeability with system specifications before substitution.
Key specifications for 2-W-WASHER: Overall Height: 0.250 INCHES NOMINAL IN; Style Designator: SPRING TENSION; Outside Diameter: 0.375 INCHES NOMINAL IN; Material Thickness: 0.010 INCHES NOMINAL IN. 6 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.