The Washer,key, cataloged under National Stock Number 5310-00-905-2064, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-905-2064 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 2.172 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Material Thickness | 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN |
| External Key Quantity | 15 |
| Internal Prebent Key Length | 0.050 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| External Prebent Key Width | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 1.270 INCHES MINIMUM AND 1.290 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 |
|---|---|
| 209867 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-905-2064 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-905-2064: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Overall Distance Including Keys: 2.172 INCHES NOMINAL IN; Style Designator: KEY. 13 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.