The Screw,assembled Washer, cataloged under National Stock Number 5305-01-159-2779, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-159-2779 |
| Primary Part Number | 14044340 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 4.8 MILLIMETERS MM |
| Fastener Length | 24.20 MILLIMETERS MINIMUM AND 25.80 MILLIMETERS MAXIMUM MM |
| Primary Washer Outside Diameter | 12.8 MILLIMETERS MINIMUM AND 13.1 MILLIMETERS MAXIMUM MM |
| Thread Length | 18.7 MILLIMETERS MINIMUM AND 20.3 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER |
| Nonmachine Thread Style | GIMLET POINT (TYPE A, AB OR BA) |
| Material Document and Classification | GM 6010-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE FASTENER |
| Material Document and Classification | GM 6010-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| Features Provided | CASEHARDENED |
| Head Style | FLAT TOP ELEVATOR |
| Primary Washer Style | SPRING TENSION |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.5 MILLIMETERS MINIMUM AND 0.6 MILLIMETERS MAXIMUM MM |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 80.0 RADIANS MINIMUM AND 82.0 RADIANS MAXIMUM |
| Material | STEEL PRIMARY WASHER |
| Material | STEEL FASTENER |
| Washer Quantity | 1 |
| Head Diameter | 8.6 MILLIMETERS MINIMUM AND 9.8 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 |
|---|---|
| 14044340 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 14044340 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5305-01-159-2779 is a Screw,assembled Washer, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-159-2779 has 1 manufacturer part number on file: 14044340 (General Motors Llc Dba General Motors Llc).
Key specifications for 14044340: Nonmachine Nominal Thread Diameter: 4.8 MILLIMETERS MM; Fastener Length: 24.20 MILLIMETERS MINIMUM AND 25.80 MILLIMETERS MAXIMUM MM; Primary Washer Outside Diameter: 12.8 MILLIMETERS MINIMUM AND 13.1 MILLIMETERS MAXIMUM MM; Thread Length: 18.7 MILLIMETERS MINIMUM AND 20.3 MILLIMETERS MAXIMUM MM. 19 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.