The Bolt,machine, cataloged under National Stock Number 5306-01-662-9441, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-662-9441 |
| Primary Part Number | AEB02U312A75BC4A8N |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Head Height | 0.150 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Fastener Length | 0.175 INCHES NOMINAL IN |
| Thread Length | 0.175 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.500 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL 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 |
|---|---|
| AEB02U312A75BC4A8N PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| B1821BH031C175N | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-662-9441 is a Bolt,machine, manufactured by The American Society of Mechanical Engineers, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-662-9441 has 1 manufacturer part number on file: AEB02U312A75BC4A8N (The American Society of Mechanical Engineers).
Key specifications for AEB02U312A75BC4A8N: Head Height: 0.150 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Fastener Length: 0.175 INCHES NOMINAL IN; Thread Length: 0.175 INCHES NOMINAL IN; Nominal Thread Diameter: 0.3125 INCHES IN. 10 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.