The Washer,key, cataloged under National Stock Number 5310-00-083-0476, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-083-0476 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Style Designator | 90 DEGREE LOCKING KEY |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.558 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN |
| External Tapered Key Width | 0.290 INCHES NOMINAL IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| External Prebent Key Angle | 20.0 DEGREES MINIMUM AND 40.0 DEGREES MAXIMUM |
| External Prebent Key Width | 0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Hole Diameter | 0.328 INCHES MINIMUM AND 0.333 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 |
|---|---|
| 5310HU1-000TYA3 | 3/2 Design control — primary reference U.S. Government activity |
| STD3018K12 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-083-0476 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-083-0476: Distance From Centerline to Inside of Prebent Key: 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; External Prebent Key Length: 0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Style Designator: 90 DEGREE LOCKING KEY; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.