The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-388-3679, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 14 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 | 5305-01-388-3679 |
| Primary Part Number | 12387309-200 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN |
| Fastener Length | 5.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | 171, 1.9.2.3 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Color | BRONZE OR OLIVE DRAB OVERALL |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 10 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 12387309-200 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5305-01-388-3679 is a Screw,cap,hexagon Head, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-388-3679 has 1 manufacturer part number on file: 12387309-200 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12387309-200: Head Height: 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN; Fastener Length: 5.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: 171, 1.9.2.3 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN. 14 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.