The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-385-0146, 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 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 | 5305-01-385-0146 |
| Primary Part Number | 12259791-2 |
| 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 | 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Fastener Length | 10.650 INCHES MINIMUM AND 10.750 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | FF-S-85 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.750 INCHES MINIMUM AND 1.930 INCHES MAXIMUM IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAE J429 GR5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.285 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | II, ST 10P TYPE |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| 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 |
|---|---|
| 12259791-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5305-01-385-0146 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 5305-01-385-0146 has 1 manufacturer part number on file: 12259791-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12259791-2: Head Height: 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN; Fastener Length: 10.650 INCHES MINIMUM AND 10.750 INCHES MAXIMUM IN; Surface Treatment Document and Classification: FF-S-85 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.750 INCHES MINIMUM AND 1.930 INCHES MAXIMUM IN. 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.