The Washer,shouldered, cataloged under National Stock Number 5310-00-322-6903, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-322-6903 |
| Primary Part Number | 5506D |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Shoulder Height | 0.133 INCHES NOMINAL IN |
| Style Designator | SHOULDERED |
| Outside Diameter | 1.938 INCHES NOMINAL IN |
| Material Thickness | 0.177 INCHES NOMINAL IN |
| Shoulder Diameter | 1.682 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 1.062 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 |
|---|---|
| 5506D PRIMARY | Hunt Valve Company, Inc. (USA) |
| 5954-21SALT5PC5506D PRIMARY | Hunt Valve Company, Inc. (USA) |
| 6743PC5506D PRIMARY | Hunt Valve Company, Inc. (USA) |
| 6745PC5506D PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5955-223A5RAPC55 | 5/9 Secondary reference Hunt Valve Company, Inc. |
| 0GD | 5/9 Secondary reference Hunt Valve Company, Inc. |
| 0GD | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| 5955-223A5RAPC55 | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| 576-4824-1506669REVAPC5506D | 3/2 Design control — primary reference U.S. Government activity |
| 571-4824-1486599REVAPC5506D | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-322-6903 is a Washer,shouldered, manufactured by Hunt Valve Company, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-322-6903 has 4 manufacturer part numbers on file: 5506D (Hunt Valve Company, Inc.), 5954-21SALT5PC5506D (Hunt Valve Company, Inc.), 6743PC5506D (Hunt Valve Company, Inc.), 6745PC5506D (Hunt Valve Company, Inc.).
Key specifications for 5506D: Shoulder Height: 0.133 INCHES NOMINAL IN; Style Designator: SHOULDERED; Outside Diameter: 1.938 INCHES NOMINAL IN; Material Thickness: 0.177 INCHES NOMINAL IN. 7 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.