The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-00-950-8791, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 11 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 | 5310-00-950-8791 |
| Primary Part Number | 544803 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Shoulder Height | 0.055 INCHES NOMINAL IN |
| Hardness Rating | 61.5 ROCKWELL SUPERFICIAL 30-T MINIMUM |
| Style Designator | SHOULDERED AND RECESSED |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.280 INCHES NOMINAL IN |
| Material Thickness | 0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.187 INCHES NOMINAL IN |
| Recess Diameter | 1.118 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Hole Diameter | 0.953 INCHES NOMINAL IN |
| Recess Angle | 90.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 544803 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5310-00-950-8791 is a Washer,shouldered and Recessed, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-950-8791 has 1 manufacturer part number on file: 544803 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 544803: Shoulder Height: 0.055 INCHES NOMINAL IN; Hardness Rating: 61.5 ROCKWELL SUPERFICIAL 30-T MINIMUM; Style Designator: SHOULDERED AND RECESSED; Material Document and Classification: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.