The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-021-4208, 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 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-021-4208 |
| Primary Part Number | 214208 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 3.500 INCHES NOMINAL IN |
| Thread Length | 1.250 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.750 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 214208 PRIMARY | General Motors Corp (USA) |
NSN 5305-00-021-4208 is a Screw,cap,hexagon Head, manufactured by General Motors Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-021-4208 has 1 manufacturer part number on file: 214208 (General Motors Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5306-00-350-3803, 5315-01-212-5267. Verify interchangeability with system specifications before substitution.
Key specifications for 214208: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 3.500 INCHES NOMINAL IN; Thread Length: 1.250 INCHES MINIMUM IN; Nominal Thread Diameter: 0.500 INCHES 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.