The Washer,flat, cataloged under National Stock Number 5310-01-374-1107, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Div Rmd Strategic. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-374-1107 |
| Primary Part Number | 1643193 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Raytheon Company Div Rmd Strategic |
| Status | ACTIVE |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTMA366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Peripheral Shape Style | SQUARE |
| Material | STEEL COMP 1009 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.307 INCHES MINIMUM AND 0.318 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 |
|---|---|
| 1643193 PRIMARY | Raytheon Company Div Rmd Strategic (USA) |
NSN 5310-01-374-1107 is a Washer,flat, manufactured by Raytheon Company Div Rmd Strategic, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-374-1107 has 1 manufacturer part number on file: 1643193 (Raytheon Company Div Rmd Strategic).
Key specifications for 1643193: Width Across Flats: 1.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: ASTMA366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: CADMIUM AND CHROMATE OVERALL. 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.