The Washer,key, cataloged under National Stock Number 5310-00-453-1089, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-453-1089 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Split Key Length | 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Heat Treatment | ANNEALED |
| Style Designator | KEY |
| Outside Diameter | 0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN |
| External Tapered Key Width | 0.300 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| External Key Quantity | 1 |
| External Prebent Key Width | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Angle Between External Keys | 58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM |
| Hole Diameter | 0.320 INCHES MINIMUM AND 0.325 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 |
|---|---|
| SP42G | 3/9 Design control — primary reference British Aerospace North America Inc |
NSN 5310-00-453-1089 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-453-1089: Distance From Centerline to Inside of Prebent Key: 0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN; Split Key Length: 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN; External Prebent Key Length: 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN. 14 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.