The Washer,key, cataloged under National Stock Number 5310-00-452-1808, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meggitt Aerospace Limited. Government technical data includes 12 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 | 5310-00-452-1808 |
| Primary Part Number | AC028551 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meggitt Aerospace Limited |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.349 INCHES NOMINAL IN |
| Split Key Length | 0.125 INCHES NOMINAL IN |
| Overall Distance Including Keys | 0.627 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 0.446 INCHES NOMINAL IN |
| External Tapered Key Width | 0.256 INCHES NOMINAL IN |
| Material Thickness | 0.033 INCHES NOMINAL IN |
| External Key Quantity | 1 |
| External Prebent Key Width | 0.115 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Hole Diameter | 0.259 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 |
| Part Number | Manufacturer |
|---|---|
| AC028551 PRIMARY | Meggitt Aerospace Limited (GBR) |
NSN 5310-00-452-1808 is a Washer,key, manufactured by Meggitt Aerospace Limited, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-452-1808 has 1 manufacturer part number on file: AC028551 (Meggitt Aerospace Limited).
Key specifications for AC028551: Distance From Centerline to Inside of Prebent Key: 0.349 INCHES NOMINAL IN; Split Key Length: 0.125 INCHES NOMINAL IN; Overall Distance Including Keys: 0.627 INCHES NOMINAL IN; Style Designator: KEY. 12 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.