The Washer,shouldered, cataloged under National Stock Number 5310-00-010-8221, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Breeze-Eastern Llc. 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. 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 | 5310-00-010-8221 |
| Primary Part Number | BL6241 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Shoulder Height | 0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Outside Diameter | 1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN |
| Material Thickness | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.376 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Hole Diameter | 1.198 INCHES MINIMUM AND 1.208 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 |
|---|---|
| BL6241 PRIMARY | Breeze-Eastern Llc (USA) |
NSN 5310-00-010-8221 is a Washer,shouldered, manufactured by Breeze-Eastern Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-010-8221 has 1 manufacturer part number on file: BL6241 (Breeze-Eastern Llc).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-528-2184. Verify interchangeability with system specifications before substitution.
Key specifications for BL6241: Shoulder Height: 0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Outside Diameter: 1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN; Material Thickness: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM 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.