The Washer,flat, cataloged under National Stock Number 5310-01-411-5824, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Industrial Acoustics Company, Inc. Dba I a C Div Iac Acoustics. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-411-5824 |
| Primary Part Number | 9450286 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Industrial Acoustics Company, Inc. Dba I a C Div Iac Acoustics |
| Status | ACTIVE |
| Width Across Flats | 1.750 INCHES NOMINAL IN |
| Peripheral Shape Style | SQUARE |
| Material | STEEL COMP 430 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.560 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 |
|---|---|
| 9450286 | Industrial Acoustics Company, Inc. Dba I a C Div Iac Acoustics (USA) |
| Reference | Meaning |
|---|---|
| 9450286 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-01-411-5824 is a Washer,flat, manufactured by Industrial Acoustics Company, Inc. Dba I a C Div Iac Acoustics, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-411-5824 has 1 manufacturer part number on file: 9450286 (Industrial Acoustics Company, Inc. Dba I a C Div Iac Acoustics).
Key specifications for 9450286: Width Across Flats: 1.750 INCHES NOMINAL IN; Peripheral Shape Style: SQUARE; Material: STEEL COMP 430 OVERALL; Center Hole Shape Style: ROUND. 5 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.