The Bolt,machine, cataloged under National Stock Number 5306-00-291-0052, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is West Coast Distributing Llc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-291-0052 |
| Primary Part Number | AM421 S4400-1024873-839 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | West Coast Distributing Llc |
| Status | ACTIVE |
| Head Height | 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN |
| Fastener Length | 2.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-N-35 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 1.750 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 2 TYPE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 10 |
| Material | COPPER ALLOY 464 OR COPPER ALLOY 462 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 |
|---|---|
| AM421 S4400-1024873-839 | Flight Source Inc (USA) |
| AM421 S4400-1024873-839 PRIMARY | West Coast Distributing Llc (USA) |
| AM421 S4400-1024873-839 | Afm Hardware, Inc. (USA) |
NSN 5306-00-291-0052 is a Bolt,machine, manufactured by West Coast Distributing Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-291-0052 has 3 manufacturer part numbers on file: AM421 S4400-1024873-839 (Flight Source Inc), AM421 S4400-1024873-839 (West Coast Distributing Llc), AM421 S4400-1024873-839 (Afm Hardware, Inc.).
Key specifications for AM421 S4400-1024873-839: Head Height: 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN; Fastener Length: 2.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-N-35 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 1.750 INCHES MINIMUM 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.