The Screw,tapping, cataloged under National Stock Number 5305-01-159-2783, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-159-2783 |
| Primary Part Number | 8782501 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.250 INCHES IN |
| Head Height | 0.118 INCHES MINIMUM AND 0.134 INCHES MAXIMUM IN |
| Fastener Length | 0.625 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | GM 4342-M CODE 20 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM OVERALL |
| Nonmachine Thread Style | BLUNT (TYPE TT) |
| Material Document and Classification | GM 6010-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | CASEHARDENED |
| Head Style | BUTTON |
| Surface Treatment | ZINC OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Material | STEEL OVERALL |
| Head Diameter | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 8782501 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 8782501 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5305-01-159-2783 is a Screw,tapping, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-159-2783 has 1 manufacturer part number on file: 8782501 (General Motors Llc Dba General Motors Llc).
Key specifications for 8782501: Nonmachine Nominal Thread Diameter: 0.250 INCHES IN; Head Height: 0.118 INCHES MINIMUM AND 0.134 INCHES MAXIMUM IN; Fastener Length: 0.625 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN; Surface Treatment Document and Classification: GM 4342-M CODE 20 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 13 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.