The Washer,flat, cataloged under National Stock Number 5310-01-559-8231, 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 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-559-8231 |
| Primary Part Number | AEW24X50N000SE4A31 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Overall Diameter | 1.062 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 316 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.531 INCHES NOMINAL IN |
| Thickness | 0.074 INCHES MINIMUM AND 0.121 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 |
|---|---|
| AEW24X50N000SE4A31 PRIMARY | The American Society of Mechanical Engineers (USA) |
| 91950A033 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| B18.21.1 | 5/1 Secondary reference The American Society of Mechanical Engineers |
| M1170-053179 | 6/9 Informative reference only Forsvarets Materielverk |
NSN 5310-01-559-8231 is a Washer,flat, manufactured by The American Society of Mechanical Engineers, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-559-8231 has 2 manufacturer part numbers on file: AEW24X50N000SE4A31 (The American Society of Mechanical Engineers), 91950A033 (Mcmaster-Carr Supply Co).
Key specifications for AEW24X50N000SE4A31: Overall Diameter: 1.062 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; End Item Identification: AN/WLD-1(V), REMOTE MINE HUNTING SYSTEM; MRAP BUFFALO MK2A2; MRAP - M-ATV. 7 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.