The Washer,key, cataloged under National Stock Number 5310-00-770-8360, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-770-8360 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.212 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN |
| Split Key Length | 0.075 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.095 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.585 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.414 INCHES MINIMUM AND 0.434 INCHES MAXIMUM IN |
| External Tapered Key Width | 0.218 INCHES NOMINAL IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| External Key Quantity | 1 |
| External Prebent Key Angle | 20.0 DEGREES MINIMUM AND 40.0 DEGREES MAXIMUM |
| External Prebent Key Width | 0.142 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Hole Diameter | 0.203 INCHES MINIMUM AND 0.208 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 |
|---|---|
| 5310HU1-000TYB21 | 3/2 Design control — primary reference U.S. Government activity |
| STD3023K1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| STD3023K1 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-770-8360 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-770-8360: Distance From Centerline to Inside of Prebent Key: 0.212 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN; Split Key Length: 0.075 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN; External Prebent Key Length: 0.095 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.585 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN. 15 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.