The Washer,spring Tension, cataloged under National Stock Number 5310-00-966-9864, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-966-9864 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | DOD-P-16232,TY M,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPRING TENSION |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.055 INCHES NOMINAL IN |
| Material Thickness | 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | STEEL COMP 4140 OVERALL |
| Hole Diameter | 0.315 INCHES MINIMUM AND 0.317 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 |
|---|---|
| 41253 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-966-9864 is a Washer,spring Tension, classified under FSC 5310, Nuts and Washers. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5120-01-046-4952, 3040-01-280-5287, 6515-01-443-0080. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-966-9864: Overall Height: 0.094 INCHES NOMINAL IN; Surface Treatment Document and Classification: DOD-P-16232,TY M,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPRING TENSION; Material Document and Classification: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 8 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.