The Washer,flat, cataloged under National Stock Number 5310-01-671-0957, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-671-0957 |
| Primary Part Number | 92217A449 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Overall Diameter | 0.7270 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 45MU9-ASME-B18.0 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 304 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.1980 INCHES MINIMUM AND 0.2110 INCHES MAXIMUM IN |
| Thickness | 0.0560 INCHES MINIMUM AND 0.0710 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 |
|---|---|
| 92217A449 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| AEW26X19W000SB8A11 PRIMARY | Asme Standards Technology, Llc (USA) |
NSN 5310-01-671-0957 is a Washer,flat, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-671-0957 has 2 manufacturer part numbers on file: 92217A449 (Mcmaster-Carr Supply Co), AEW26X19W000SB8A11 (Asme Standards Technology, Llc).
Key specifications for 92217A449: Overall Diameter: 0.7270 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Specification/standard Data: 45MU9-ASME-B18.0 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Peripheral Shape Style: ROUND. 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.