The Washer,spring Tension, cataloged under National Stock Number 5310-01-191-4554, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-191-4554 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM |
| Material Document and Classification | AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.845 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN |
| Material Thickness | 0.016 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 631 OVERALL |
| Hole Diameter | 0.640 INCHES MINIMUM AND 0.660 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 |
| Reference | Meaning |
|---|---|
| 5006945 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-191-4554 is a Washer,spring Tension, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5975-01-293-1583. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-191-4554: Hardness Rating: 46.0 ROCKWELL C MINIMUM; Material Document and Classification: AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.845 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN; Material Thickness: 0.016 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN. 7 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.