The Washer,key, cataloged under National Stock Number 5310-00-090-3875, 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13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-090-3875 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Top of Internal Key | 3.140 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.714 INCHES NOMINAL IN |
| Overall Distance Including Keys | 8.532 INCHES MINIMUM AND 8.594 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Outside Diameter | 7.508 INCHES MINIMUM AND 7.568 INCHES MAXIMUM IN |
| Material Thickness | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| External Key Quantity | 19 |
| External Prebent Key Angle | 30.0 DEGREES NOMINAL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| External Prebent Key Width | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 6.764 INCHES MINIMUM AND 6.799 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 |
|---|---|
| W034 | 5/9 Secondary reference Pebbco Industries Hydronics Div Burnham Corp |
| 71-811257-1 | 3/9 Design control — primary reference General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
NSN 5310-00-090-3875 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-090-3875: Distance From Centerline to Top of Internal Key: 3.140 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.714 INCHES NOMINAL IN; Overall Distance Including Keys: 8.532 INCHES MINIMUM AND 8.594 INCHES MAXIMUM IN. 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.