The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-398-4026, 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 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-398-4026 |
| Primary Part Number | 9421701 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Width Across Flats | 0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Head Height | 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Fastener Length | 1.585 INCHES MINIMUM AND 1.665 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | G-4252-M, CAGE 24617 MFR REF ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.880 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL UNS K03104 OVERALL |
| Thread Series Designator | UNRC |
| Head Diameter | 0.262 INCHES MINIMUM AND 0.270 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 |
|---|---|
| 9421701 PRIMARY | General Motors Corp (USA) |
NSN 5305-01-398-4026 is a Screw,cap,socket Head, manufactured by General Motors Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-398-4026 has 1 manufacturer part number on file: 9421701 (General Motors Corp).
Key specifications for 9421701: Width Across Flats: 0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Head Height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Fastener Length: 1.585 INCHES MINIMUM AND 1.665 INCHES MAXIMUM IN; Surface Treatment Document and Classification: G-4252-M, CAGE 24617 MFR REF ALL TREATMENT RESPONSES OVERALL. 17 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.