The Washer,shouldered, cataloged under National Stock Number 5310-01-051-9554, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 8 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-051-9554 |
| Primary Part Number | 685008-1 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Shoulder Height | 0.0225 INCHES NOMINAL IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | 616 L-P-410 FSCM 06481 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.600 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN |
| Material Thickness | 0.030 INCHES NOMINAL IN |
| Shoulder Diameter | 0.495 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Hole Diameter | 0.320 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 |
|---|---|
| 685008-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 5310-01-051-9554 is a Washer,shouldered, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-051-9554 has 1 manufacturer part number on file: 685008-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-469-6651. Verify interchangeability with system specifications before substitution.
Key specifications for 685008-1: Shoulder Height: 0.0225 INCHES NOMINAL IN; Style Designator: SHOULDERED; Material Document and Classification: 616 L-P-410 FSCM 06481 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.600 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN. 8 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.