The Washer,shouldered, cataloged under National Stock Number 5310-01-031-7553, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 7 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 | 5310-01-031-7553 |
| Primary Part Number | 2505844 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Shoulder Height | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Outside Diameter | 2.375 INCHES NOMINAL IN |
| Material Thickness | 0.135 INCHES NOMINAL IN |
| Shoulder Diameter | 1.776 INCHES MINIMUM AND 1.786 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2017 OVERALL |
| Hole Diameter | 1.630 INCHES MINIMUM AND 1.640 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 |
|---|---|
| 2505844 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5310-01-031-7553 is a Washer,shouldered, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-031-7553 has 1 manufacturer part number on file: 2505844 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2505844: Shoulder Height: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Outside Diameter: 2.375 INCHES NOMINAL IN; Material Thickness: 0.135 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.