The Washer,flat, cataloged under National Stock Number 5310-01-442-1109, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-442-1109 |
| Primary Part Number | 9421888 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Overall Diameter | 0.993 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | ZINC ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN |
| Thickness | 0.056 INCHES MINIMUM AND 0.071 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 |
|---|---|
| 9421888 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 456720107800 | 6/9 Informative reference only Ncb Hungary (honvedsegi Egyseges Termekkod) |
NSN 5310-01-442-1109 is a Washer,flat, manufactured by General Motors Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-442-1109 has 1 manufacturer part number on file: 9421888 (General Motors Corp).
Key specifications for 9421888: Overall Diameter: 0.993 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; End Item Identification: MRAP - COUGAR CAT1 A2. 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.