The Washer,flat, cataloged under National Stock Number 5310-01-693-7677, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 12 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 | 5310-01-693-7677 |
| Primary Part Number | AEW03X562000BD6A21 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Width Across Flats | 1.375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 40.0 ROCKWELL B NOMINAL |
| Material Document and Classification | ASTM F436,TYPE 1 - CARBON STEEL AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 05047-ASME B18.24-2015 NATIONAL STD/SPEC |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | SQUARE |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.562 INCHES NOMINAL IN |
| Thickness | 0.170 INCHES MINIMUM AND 0.200 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 |
|---|---|
| 99041A111 | Mcmaster-Carr Supply Co (USA) |
| AEW03X562000BD6A21 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5310-01-693-7677 is a Washer,flat, manufactured by The American Society of Mechanical Engineers, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-693-7677 has 2 manufacturer part numbers on file: 99041A111 (Mcmaster-Carr Supply Co), AEW03X562000BD6A21 (The American Society of Mechanical Engineers).
Key specifications for AEW03X562000BD6A21: Width Across Flats: 1.375 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 40.0 ROCKWELL B NOMINAL; Material Document and Classification: ASTM F436,TYPE 1 - CARBON STEEL AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL. 12 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.