The Washer,finishing, cataloged under National Stock Number 5310-00-685-1901, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-685-1901 |
| Item Name | Washer,finishing |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | FINISHING |
| Material Document and Classification | MIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.778 INCHES NOMINAL IN |
| Material Thickness | 0.016 INCHES NOMINAL IN |
| Specification/standard Data | 81205-BACW10U MANUFACTURERS STANDARD |
| Recess Diameter | 0.500 INCHES NOMINAL IN |
| Material | STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL |
| Hole Diameter | 0.286 INCHES NOMINAL IN |
| Recess Angle | 100.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| BACW10UC416 | 5/2 Secondary reference U.S. Government activity |
| BACW10UC416 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-685-1901 is a Washer,finishing, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-685-1901: Overall Height: 0.093 INCHES NOMINAL IN; Style Designator: FINISHING; Material Document and Classification: MIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Outside Diameter: 0.778 INCHES NOMINAL IN. 9 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.