The Bolt,machine, cataloged under National Stock Number 5306-00-477-9618, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-477-9618 |
| Primary Part Number | 159-34140 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Surface Finish | 20.0 MICROINCHES GRIP |
| Surface Finish | 100.0 MICROINCHES HEAD |
| Surface Finish | 100.0 MICROINCHES THREADS |
| Head Height | 0.173 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Fastener Length | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.392 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Width Between Flats | 0.875 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.423 INCHES MINIMUM AND 1.453 INCHES MAXIMUM 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 |
NSN 5306-00-477-9618 is a Bolt,machine, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-477-9618 has 2 manufacturer part numbers on file: 159-34140 (Smith and Smith Aircraft Co), 159-34140 (The Boeing Company Div Legacy Am&m).
Key specifications for 159-34140: Surface Finish: 20.0 MICROINCHES GRIP; Surface Finish: 100.0 MICROINCHES HEAD; Surface Finish: 100.0 MICROINCHES THREADS; Head Height: 0.173 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN. 22 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.