The Washer,key, cataloged under National Stock Number 5310-01-006-9016, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-006-9016 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Angle Between First and Second Key | 79.0 DEGREES NOMINAL |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | +16-TE5,CLASS 1,99207 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Distance Including Keys | 1.100 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN |
| Heat Treatment | QUENCHED AND TEMPERED |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.846 INCHES MINIMUM AND 0.866 INCHES MAXIMUM IN |
| Material Thickness | 0.025 INCHES NOMINAL IN |
| External Straight Key Width | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| External Key Quantity | 4 |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Angle Between Second and Third Key | 64.0 DEGREES NOMINAL |
| Hole Diameter | 0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN |
| Angle Between Third and Fourth Key | 99.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 4002T66P13 | 3/2 Design control — primary reference U.S. Government activity |
| 4002T66P13 | 5/9 Secondary reference Crystal Machine and Die Corp |
NSN 5310-01-006-9016 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-006-9016: Angle Between First and Second Key: 79.0 DEGREES NOMINAL; Surface Finish: 63.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: +16-TE5,CLASS 1,99207 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Distance Including Keys: 1.100 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN. 16 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.