The Screw,tapping, cataloged under National Stock Number 5305-01-243-9396, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-243-9396 |
| Primary Part Number | 20662042 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.164 INCHES IN |
| Extended Washer Thickness | 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Head Height | 0.118 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Fastener Length | 0.409 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | GM 4342-M CAGE 16764 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.322 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Nonmachine Thread Style | BLUNT (TYPE TT) |
| Head Style | HEXAGON EXTENDED WASHER |
| Width Between Flats | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Surface Treatment | DICHROMATE 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 |
|---|---|
| 20662042 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 1985712 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
NSN 5305-01-243-9396 is a Screw,tapping, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-243-9396 has 1 manufacturer part number on file: 20662042 (General Motors Llc Dba General Motors Llc).
Key specifications for 20662042: Nonmachine Nominal Thread Diameter: 0.164 INCHES IN; Extended Washer Thickness: 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Head Height: 0.118 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Fastener Length: 0.409 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN. 12 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.