The Washer,spring Tension, cataloged under National Stock Number 5310-01-249-0489, 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7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-249-0489 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Material Document and Classification | QQ-A-225/6,T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 3.500 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN |
| Material Thickness | 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Surface Treatment | PRIMER OVERALL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Hole Diameter | 0.249 INCHES MINIMUM AND 0.255 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 |
|---|---|
| 39736 | 3/9 Design control — primary reference U.S. Government activity |
| 39736 | 3/2 Design control — primary reference U.S. Government activity |
| 39736 | 5/9 Secondary reference Joint Oil Analysis Program Dba Department of Defense |
| 204-012-127-101 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-249-0489 is a Washer,spring Tension, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-249-0489: Overall Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Style Designator: SPRING TENSION; Material Document and Classification: QQ-A-225/6,T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 3.500 INCHES MINIMUM AND 3.530 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.