The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-439-4830, 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 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-439-4830 |
| Primary Part Number | 12414475-059 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 4.0 MILLIMETERS NOMINAL MM |
| Head Height | 4.86 MILLIMETERS MINIMUM AND 5.00 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 20.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 0.8 |
| Thread Length | 20.0 MILLIMETERS NOMINAL MM |
| Material Document and Classification | GRADE 12.9,ISO 898 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 5.0 MILLIMETERS MM |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| Head Diameter | 8.27 MILLIMETERS MINIMUM AND 8.50 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 12414475-59 | Amz Alabama Inc. (USA) |
| 12414475-59 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 12414475-059 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5305-01-439-4830 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 5305-01-439-4830 has 3 manufacturer part numbers on file: 12414475-59 (Amz Alabama Inc.), 12414475-59 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 12414475-059 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12414475-059: Width Across Flats: 4.0 MILLIMETERS NOMINAL MM; Head Height: 4.86 MILLIMETERS MINIMUM AND 5.00 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 20.0 MILLIMETERS NOMINAL MM. 15 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.