The Washer,shouldered, cataloged under National Stock Number 5310-00-240-6733, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-240-6733 |
| Primary Part Number | 580R635H13 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Shoulder Height | 0.040 INCHES NOMINAL IN |
| Style Designator | SHOULDERED |
| Outside Diameter | 0.531 INCHES NOMINAL IN |
| Material Thickness | 0.050 INCHES NOMINAL IN |
| Shoulder Diameter | 0.281 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.203 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 |
|---|---|
| 580R635H13 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| CG3409 PRIMARY | American Beryllia Inc (USA) |
| Reference | Meaning |
|---|---|
| 580R635H13 | 5/9 Secondary reference U.S. Government activity |
| CG3409 | 3/9 Design control — primary reference General Ceramics Inc National Beryllia Div |
NSN 5310-00-240-6733 is a Washer,shouldered, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-240-6733 has 2 manufacturer part numbers on file: 580R635H13 (Northrop Grumman Support Services Corp), CG3409 (American Beryllia Inc).
Key specifications for 580R635H13: Shoulder Height: 0.040 INCHES NOMINAL IN; Style Designator: SHOULDERED; Outside Diameter: 0.531 INCHES NOMINAL IN; Material Thickness: 0.050 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.