The Washer,key, cataloged under National Stock Number 5310-01-048-2637, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Watervliet Arsenal Div Business Development. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-048-2637 |
| Primary Part Number | 11579004 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Watervliet Arsenal Div Business Development |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BOTTOM |
| Surface Finish | 63.0 MICROINCHES TOP |
| Surface Treatment Document and Classification | MIL-A-8625 TY 3 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | KEY |
| Material Document and Classification | A11577279,TEMPER T6,FSCM 19206 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN |
| Material Thickness | 0.087 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| External Straight Key Width | 0.290 INCHES NOMINAL IN |
| Distance From Centerline to End of Key | 0.555 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN |
| Color | BLACK OVERALL |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Hole Diameter | 0.740 INCHES MINIMUM AND 0.750 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 |
| Part Number | Manufacturer |
|---|---|
| 11579004 PRIMARY | Army, United States Department of the Dba Watervliet Arsenal Div Business Development (USA) |
NSN 5310-01-048-2637 is a Washer,key, manufactured by Army, United States Department of the Dba Watervliet Arsenal Div Business Development, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-048-2637 has 1 manufacturer part number on file: 11579004 (Army, United States Department of the Dba Watervliet Arsenal Div Business Development).
Key specifications for 11579004: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES TOP; Surface Treatment Document and Classification: MIL-A-8625 TY 3 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; 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.