The Washer,spring Tension, cataloged under National Stock Number 5310-01-066-3543, 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7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-066-3543 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL STD 171,FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.485 INCHES MINIMUM AND 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM0.515 INCHES MAXIMUM IN |
| Material Thickness | 0.010 INCHES NOMINAL0.010 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 410 OVERALL |
| Hole Diameter | 0.260 INCHES MINIMUM AND 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM0.270 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 | N |
| Reference | Meaning |
|---|---|
| 0N241896-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-066-3543 is a Washer,spring Tension, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-066-3543: Overall Height: 0.052 INCHES MINIMUM AND 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM0.072 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL STD 171,FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.485 INCHES MINIMUM AND 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM0.515 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.