The Washer,flat, cataloged under National Stock Number 5310-01-149-9675, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-149-9675 |
| Primary Part Number | 459948 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | GM 4435-M CODE A,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 26.0 MILLIMETERS NOMINAL MM |
| Hardness Rating | 85.0 ROCKWELL B MINIMUM |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PHOSPHATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1035 OR STEEL COMP 1050 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 12.2 MILLIMETERS NOMINAL MM |
| Thickness | 3.38 MILLIMETERS MINIMUM AND 3.74 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 |
|---|---|
| 459948 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 459948 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5310-01-149-9675 is a Washer,flat, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-149-9675 has 1 manufacturer part number on file: 459948 (General Motors Llc Dba General Motors Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-259-5569. Verify interchangeability with system specifications before substitution.
Key specifications for 459948: Surface Treatment Document and Classification: GM 4435-M CODE A,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 26.0 MILLIMETERS NOMINAL MM; Hardness Rating: 85.0 ROCKWELL B MINIMUM; Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL. 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.
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.