The Bolt,machine, cataloged under National Stock Number 5306-00-043-2169, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is G M J Machine Co, Inc Div G.m.j. Machine Company, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-043-2169 |
| Primary Part Number | 756171-105 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | G M J Machine Co, Inc Div G.m.j. Machine Company, Inc. |
| Status | ACTIVE |
| Head Height | 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Fastener Length | 3.720 INCHES NOMINAL IN |
| Thread Length | 0.800 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.146 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.142 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.580 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 |
|---|---|
| 756171-105 | G M J Machine Co, Inc Div G.m.j. Machine Company, Inc. (USA) |
| 756171-105 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 756171-105 | A and M Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 756171-105 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-043-2169 is a Bolt,machine, manufactured by G M J Machine Co, Inc Div G.m.j. Machine Company, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-043-2169 has 3 manufacturer part numbers on file: 756171-105 (G M J Machine Co, Inc Div G.m.j. Machine Company, Inc.), 756171-105 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 756171-105 (A and M Aerospace, Inc.).
Key specifications for 756171-105: Head Height: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Fastener Length: 3.720 INCHES NOMINAL IN; Thread Length: 0.800 INCHES MINIMUM IN; Shank Unthreaded Hole Diameter: 0.146 INCHES NOMINAL FIRST HOLE 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.