The Washer,flat, cataloged under National Stock Number 5310-01-154-3993, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-154-3993 |
| Primary Part Number | 10139097 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Overall Diameter | 16.8 MILLIMETERS MINIMUM AND 17.1 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 50.0 ROCKWELL SUPERFICIAL 15-T MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER OVERALL |
| Center Hole Shape Style | ROUND |
| Thickness | 1.25 MILLIMETERS MINIMUM AND 1.35 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 10139097 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 10139097 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 14000172 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5310-01-154-3993 is a Washer,flat, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-154-3993 has 1 manufacturer part number on file: 10139097 (General Motors Llc Dba General Motors Llc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-718-5097. Verify interchangeability with system specifications before substitution.
Key specifications for 10139097: Overall Diameter: 16.8 MILLIMETERS MINIMUM AND 17.1 MILLIMETERS MAXIMUM MM; Hardness Rating: 50.0 ROCKWELL SUPERFICIAL 15-T MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.