The Washer,flat, cataloged under National Stock Number 5310-00-044-6188, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-044-6188 |
| Primary Part Number | 446188 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | CANCELLED |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Departure From Cited Designator | AS MODIFIED BY SURFACE |
| Nondefinitive Spec/std Data | A TYPE |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1010 OR STEEL COMP 1020 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.266 INCHES NOMINAL IN |
| Thickness | 0.049 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 446188 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| 446188 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| GM446188 | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 35P199 | 5/9 Secondary reference U.S. Government activity |
| 100951X050WB | E/8 Replaced / superseded reference Beechcraft Corporation Dba Textron Aviation |
| 16559R1 | 5/9 Secondary reference U.S. Government activity |
| 5310000446188 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 446188 | 5/9 Secondary reference Diamond Reo Truck Co |
| MILW1085TYPEA | 4/1 Identification reference U.S. Government activity |
| 446188 | 3/9 Design control — primary reference General Motors Corp |
| 16559R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 16559R1 | 5/9 Secondary reference International Harvester Co Agricultural Equipment Div |
| FFW92A | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-044-6188 is a Washer,flat, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-044-6188 has 3 manufacturer part numbers on file: 446188 (Army Weapons Command Attn Amswe-Ree-S), 446188 (General Motors Llc Dba General Motors Llc), GM446188 (Am General Llc).
Key specifications for 446188: Overall Diameter: 0.625 INCHES NOMINAL IN; Material Document and Classification: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Departure From Cited Designator: AS MODIFIED BY SURFACE. 11 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.
NSN 5310-00-044-6188 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.