The Washer,spring Tension, cataloged under National Stock Number 5310-00-908-9961, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Div Corp. Government technical data includes 4 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. 2 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 | 5310-00-908-9961 |
| Primary Part Number | 151289 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Outside Diameter | 3.938 INCHES NOMINAL IN |
| Material Thickness | 0.020 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 3.625 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 |
|---|---|
| 151289 PRIMARY | Raytheon Company Div Corp (USA) |
NSN 5310-00-908-9961 is a Washer,spring Tension, manufactured by Raytheon Company Div Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-908-9961 has 1 manufacturer part number on file: 151289 (Raytheon Company Div Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-286-2371, 6750-01-427-1445. Verify interchangeability with system specifications before substitution.
Key specifications for 151289: Overall Height: 0.219 INCHES NOMINAL IN; Outside Diameter: 3.938 INCHES NOMINAL IN; Material Thickness: 0.020 INCHES NOMINAL IN; Material: STEEL OVERALL. 4 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.