The Bolt,machine, cataloged under National Stock Number 5306-00-174-4675, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 26 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-174-4675 |
| Primary Part Number | J13B565BB |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 4.188 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.140 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.625 INCHES NOMINAL IN |
| Minimum Yield Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.125 INCHES NOMINAL FIRST HOLE IN |
| 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 |
|---|---|
| J13B565BB PRIMARY | Fairbanks Morse, Llc (USA) |
| 3243543 | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 13B551 | 3/2 Design control — primary reference U.S. Government activity |
| 658B13B | 5/9 Secondary reference Marine Engine Specialties Div of Mesco Tectonics Inc |
| 332403SH2ITEM21 | 5/9 Secondary reference U.S. Government activity |
| 7-356PCA60892 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 13B659 | 5/9 Secondary reference U.S. Government activity |
| NP9190PC66 | 5/9 Secondary reference U.S. Government activity |
| 659HSPC13B | 5/9 Secondary reference U.S. Government activity |
| NP9182PC13B | 5/9 Secondary reference U.S. Government activity |
| NP2034PC66 | 5/9 Secondary reference U.S. Government activity |
| 658PC13B | 5/9 Secondary reference U.S. Government activity |
| N21752PC4 | 5/9 Secondary reference U.S. Government activity |
| 666PC13B | 5/9 Secondary reference U.S. Government activity |
| 3243543 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 13B551 | 5/9 Secondary reference Marine Engine Specialties Div of Mesco Tectonics Inc |
| 13B761 | 5/9 Secondary reference U.S. Government activity |
| NP9182PC66 | 5/9 Secondary reference U.S. Government activity |
| NP12225PC39 | 5/9 Secondary reference U.S. Government activity |
| A60892 | 5/9 Secondary reference Sasco Inc Canadian Div |
| J13B565BB | 5/9 Secondary reference U.S. Government activity |
| 13B658 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-174-4675 is a Bolt,machine, manufactured by Fairbanks Morse, Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-174-4675 has 2 manufacturer part numbers on file: J13B565BB (Fairbanks Morse, Llc), 3243543 (Hatch & Kirk, Inc.).
Key specifications for J13B565BB: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 4.188 INCHES NOMINAL IN; Thread Length: 0.750 INCHES MINIMUM IN; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL. 17 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.