The Screw,tapping, cataloged under National Stock Number 5305-01-161-2583, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-161-2583 |
| Primary Part Number | 9419320 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.190 INCHES IN |
| Extended Washer Thickness | 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Head Height | 0.124 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN |
| Fastener Length | 0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | GM 4252-M CODE 20,FSCM 11862 MFR REF ALL TREATMENT RESPONSES OVERALL |
| Extended Washer Diameter | 0.384 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM OVERALL |
| Nonmachine Thread Style | DOG TYPE (TYPE B OR C) |
| Material Document and Classification | GM 6010-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | CASEHARDENED |
| Head Style | HEXAGON EXTENDED WASHER |
| Width Between Flats | 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 11505323 | General Motors Llc Dba General Motors Llc (USA) |
| 9419320 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 451790 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 11505323 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5305-01-161-2583 is a Screw,tapping, manufactured by General Motors Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-161-2583 has 2 manufacturer part numbers on file: 11505323 (General Motors Llc Dba General Motors Llc), 9419320 (General Motors Corp).
Key specifications for 9419320: Nonmachine Nominal Thread Diameter: 0.190 INCHES IN; Extended Washer Thickness: 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Head Height: 0.124 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN; Fastener Length: 0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN. 15 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.