The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-660-8890, 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 8 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 | 5305-01-660-8890 |
| Primary Part Number | 12387351-58 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-STD-171 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MS16998 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Color | BRONZE OR OLIVE DRAB OVERALL |
| Surface Treatment | CHROMATE OVERALL |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| 12387351-58 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5305-01-660-8890 is a Screw,cap,socket Head, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-660-8890 has 1 manufacturer part number on file: 12387351-58 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12387351-58: Surface Treatment Document and Classification: MIL-STD-171 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: MS16998 MIL STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.3125 INCHES IN; Thread Direction: RIGHT-HAND. 8 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.