The Washer,finishing, cataloged under National Stock Number 5310-00-685-1900, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Commercial. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-685-1900 |
| Primary Part Number | BACW10UCH6 |
| Item Name | Washer,finishing |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| Style Designator | FINISHING |
| Material Document and Classification | MIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.592 INCHES NOMINAL IN |
| Material Thickness | 0.016 INCHES NOMINAL IN |
| Specification/standard Data | 81205-BACW10U MANUFACTURERS STANDARD |
| Recess Diameter | 0.312 INCHES NOMINAL IN |
| Material | STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL |
| Hole Diameter | 0.201 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 |
| Part Number | Manufacturer |
|---|---|
| BACW10UCH6 PRIMARY | The Boeing Company Div Commercial (USA) |
| Reference | Meaning |
|---|---|
| BACW10UCH6 | 5/9 Secondary reference U.S. Government activity |
| BACW10UCH6 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-685-1900 is a Washer,finishing, manufactured by The Boeing Company Div Commercial, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-685-1900 has 1 manufacturer part number on file: BACW10UCH6 (The Boeing Company Div Commercial).
Key specifications for BACW10UCH6: Overall Height: 0.052 INCHES NOMINAL IN; Style Designator: FINISHING; Material Document and Classification: MIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Outside Diameter: 0.592 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.