The Washer,key, cataloged under National Stock Number 5310-00-210-0499, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-210-0499 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Angle Between First and Second Key | 15.0 DEGREES NOMINAL |
| Angle Between Internal Key and First Offset Key | 90.0 DEGREES NOMINAL |
| Surface Treatment Document and Classification | MIL-C-16232,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.300 INCHES NOMINAL IN |
| Overall Distance Including Keys | 11.000 INCHES NOMINAL IN |
| Angle Between Fifth and Sixth Key | 15.0 DEGREES NOMINAL |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 10.000 INCHES NOMINAL IN |
| Angle Between Fourth and Fifth Key | 15.0 DEGREES NOMINAL |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| External Straight Key Width | 0.468 INCHES NOMINAL IN |
| External Key Quantity | 12 |
| Internal Prebent Key Length | 0.312 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | STEEL OVERALL |
| Angle Between Second and Third Key | 15.0 DEGREES NOMINAL |
| Hole Diameter | 9.281 INCHES NOMINAL 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 |
|---|---|
| 730346PC2 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5310-00-210-0499 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-210-0499: Angle Between First and Second Key: 15.0 DEGREES NOMINAL; Angle Between Internal Key and First Offset Key: 90.0 DEGREES NOMINAL; Surface Treatment Document and Classification: MIL-C-16232,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.300 INCHES NOMINAL IN. 18 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.