The Washer,flat, cataloged under National Stock Number 5310-00-448-4723, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-448-4723 |
| Primary Part Number | BACW10P257AT |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Overall Diameter | 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-250/8 H38 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/8 H36 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/8 H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 81205-BACW10P MANUFACTURERS STANDARD |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY 5052 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.202 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Thickness | 0.063 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 |
|---|---|
| BACW10P257AT PRIMARY | The Boeing Company (USA) |
NSN 5310-00-448-4723 is a Washer,flat, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-448-4723 has 1 manufacturer part number on file: BACW10P257AT (The Boeing Company).
Key specifications for BACW10P257AT: Overall Diameter: 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-250/8 H38 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/8 H36 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/8 H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Specification/standard Data: 81205-BACW10P MANUFACTURERS STANDARD. 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.