The Washer,key, cataloged under National Stock Number 5310-00-151-8954, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Brp Us Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-151-8954 |
| Primary Part Number | 553081 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Brp Us Inc |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.158 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.895 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 1.510 INCHES NOMINAL IN |
| Material Thickness | 0.051 INCHES NOMINAL IN |
| External Key Quantity | 13 |
| Internal Prebent Key Length | 0.094 INCHES NOMINAL IN |
| External Prebent Key Width | 0.158 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.201 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 |
|---|---|
| 553081 PRIMARY | Brp Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 553081 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-151-8954 is a Washer,key, manufactured by Brp Us Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-151-8954 has 1 manufacturer part number on file: 553081 (Brp Us Inc).
Key specifications for 553081: Internal Prebent Key Width: 0.158 INCHES NOMINAL IN; Overall Distance Including Keys: 1.895 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 1.510 INCHES NOMINAL IN. 10 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.