The Washer,recessed, cataloged under National Stock Number 5310-00-151-9022, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Global Combat Systems Limited. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-151-9022 |
| Primary Part Number | D5E9171-161 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Global Combat Systems Limited |
| Status | ACTIVE |
| Top Recess Diameter | 0.760 INCHES NOMINAL IN |
| Bottom Recess Diameter | 0.760 INCHES NOMINAL IN |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Outside Diameter | 1.425 INCHES MINIMUM AND 1.428 INCHES MAXIMUM IN |
| Features Provided | CASEHARDENED |
| Material Thickness | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.717 INCHES MINIMUM AND 0.719 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 |
| Part Number | Manufacturer |
|---|---|
| 7R9641051 | Bae Systems Global Combat Systems Limited (GBR) |
| D5E9171-161 PRIMARY | Bae Systems Global Combat Systems Limited (GBR) |
| 7R109 | Bae Systems Global Combat Systems Limited (GBR) |
| Reference | Meaning |
|---|---|
| 7R109 | 5/9 Secondary reference Bae Systems Plc |
| 7R109 | 5/9 Secondary reference British Aerospace (military Aircraft & Aerostructures) |
NSN 5310-00-151-9022 is a Washer,recessed, manufactured by Bae Systems Global Combat Systems Limited, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-151-9022 has 3 manufacturer part numbers on file: 7R9641051 (Bae Systems Global Combat Systems Limited), D5E9171-161 (Bae Systems Global Combat Systems Limited), 7R109 (Bae Systems Global Combat Systems Limited).
Key specifications for D5E9171-161: Top Recess Diameter: 0.760 INCHES NOMINAL IN; Bottom Recess Diameter: 0.760 INCHES NOMINAL IN; Top Recess Angle: 90.0 DEGREES NOMINAL; Style Designator: RECESSED BOTH SIDES. 11 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.