The Washer,spring Tension, cataloged under National Stock Number 5310-01-431-0690, 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7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-431-0690 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Style Designator | SPRING TENSION |
| Material Document and Classification | ASTM A682 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 2.122 INCHES MINIMUM AND 2.142 INCHES MAXIMUM IN |
| Material Thickness | 0.022 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN |
| Material | STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1095 OVERALL |
| Hole Diameter | 1.648 INCHES MINIMUM AND 1.668 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 |
|---|---|
| M12133/6-15P | 2/2 Government specification standardization U.S. Government activity |
| MIL-W-12133/6 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-431-0690 is a Washer,spring Tension, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-431-0690: Overall Height: 0.142 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Style Designator: SPRING TENSION; Material Document and Classification: ASTM A682 ASSN STD ALL MATERIAL RESPONSES OVERALL. 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.