The Washer,key, cataloged under National Stock Number 5310-00-151-9027, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-151-9027 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.795 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN |
| Split Key Length | 0.235 INCHES NOMINAL IN |
| External Prebent Key Length | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 1.692 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | A-55510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN |
| External Tapered Key Width | 0.600 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Material Thickness | 0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| External Key Quantity | 3 |
| External Prebent Key Angle | 15.0 DEGREES NOMINAL |
| External Prebent Key Width | 0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Angle Between External Keys | 90.0 DEGREES NOMINAL |
| Hole Diameter | 0.890 INCHES MINIMUM AND 0.895 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 |
|---|---|
| 28L12785 | 3/9 Design control — primary reference British Aerospace (military Aircraft & Aerostructures) |
| 28L12785 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems (operations) Limited |
NSN 5310-00-151-9027 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-151-9027: Distance From Centerline to Inside of Prebent Key: 0.795 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN; Split Key Length: 0.235 INCHES NOMINAL IN; External Prebent Key Length: 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.692 INCHES NOMINAL IN. 15 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.