The Washer,flat, cataloged under National Stock Number 5310-00-044-6142, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-044-6142 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Departure From Cited Designator | AS MODIFIED BY HOLE DIA |
| Nondefinitive Spec/std Data | A TYPE |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1010 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.188 INCHES NOMINAL IN |
| Thickness | 0.049 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 |
| Reference | Meaning |
|---|---|
| 446142 | 3/9 Design control — primary reference General Motors Corp |
| MILW1085TYPEA | 4/1 Identification reference U.S. Government activity |
| 446142 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
NSN 5310-00-044-6142 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6350-01-530-8528, 5935-01-548-3083. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-044-6142: Overall Diameter: 0.375 INCHES NOMINAL IN; Material Document and Classification: QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Departure From Cited Designator: AS MODIFIED BY HOLE DIA. 10 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.