The Bolt,machine, cataloged under National Stock Number 5306-01-176-1981, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-176-1981 |
| Primary Part Number | J641P01F |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Extended Washer Thickness | 0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Head Height | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.1875 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Hole Quantity | 2 |
| Thread Series Designator | UNJC |
| Hole Type | DRILLED |
| Hole Diameter | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM 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 |
|---|---|
| J641P01F PRIMARY | General Electric Company (USA) |
| J641P01F | Aero Fastener Co Inc (USA) |
| Reference | Meaning |
|---|---|
| J641P01F | 5/9 Secondary reference Vsi Corp Vsi Underwater Systems Div Sub of Fairchild Industries Inc |
| J641P01F | 5/9 Secondary reference Adams Industries Inc a Sub of Banner Industries Inc |
NSN 5306-01-176-1981 is a Bolt,machine, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-176-1981 has 2 manufacturer part numbers on file: J641P01F (General Electric Company), J641P01F (Aero Fastener Co Inc).
Key specifications for J641P01F: Extended Washer Thickness: 0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN; Head Height: 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN; Fastener Length: 0.250 INCHES NOMINAL IN; Extended Washer Diameter: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN. 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.