The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-491-9666, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-491-9666 |
| Primary Part Number | 7409370 |
| 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 | 0.500 INCHES NOMINAL IN |
| Fastener Length | 7.188 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 2.500 INCHES NOMINAL IN |
| Material Document and Classification | FF-B-575,GRADE 8 FED SPEC 3RD MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.312 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| 7409370 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 1859A53C | Meritor Industrial Products, Llc (USA) |
| 1859A53C | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 5305004919666 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5305-00-491-9666 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 5305-00-491-9666 has 3 manufacturer part numbers on file: 7409370 (U S Army Tank Automotive Command Amsta-Im-Mm), 1859A53C (Meritor Industrial Products, Llc), 1859A53C (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 7409370: Head Height: 0.500 INCHES NOMINAL IN; Fastener Length: 7.188 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-Z-325,TYPE 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 2.500 INCHES NOMINAL 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.