The Washer,spring Tension, cataloged under National Stock Number 5310-00-595-8121, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-595-8121 |
| Primary Part Number | 5104439 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | CANCELLED |
| Style Designator | SPRING TENSION |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Material Thickness | 0.239 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5104439 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
| 33530 | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| Reference | Meaning |
|---|---|
| 5188273 | C/1 Advisory reference — outside the item-of-supply concept Rolls-Royce Solutions America Inc |
| 5150198 | 5/9 Secondary reference General Motors Corp |
| PC5104439 | 5/9 Secondary reference Power Components (deutschland) Gmbh |
| 5310005958121 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 2DD118 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
| 5104439 | 5/9 Secondary reference General Motors Corp |
| 5310PL1759939 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5104439 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
NSN 5310-00-595-8121 is a Washer,spring Tension, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-595-8121 has 2 manufacturer part numbers on file: 5104439 (Rolls-Royce Solutions America Inc), 33530 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).
5 possible matches (shared part number, not a government interchangeability claim): 5915-00-726-8704, 5930-00-949-9024, 6150-01-356-2924. Verify interchangeability with system specifications before substitution.
Key specifications for 5104439: Overall Height: 0.299 INCHES NOMINAL IN; Style Designator: SPRING TENSION; Outside Diameter: 1.250 INCHES NOMINAL IN; Material Thickness: 0.239 INCHES NOMINAL IN. 5 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.
NSN 5310-00-595-8121 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.