The Bolt,machine, cataloged under National Stock Number 5306-01-028-8943, 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 18 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-028-8943 |
| Primary Part Number | J646P27D |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Extended Washer Thickness | 0.090 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Head Height | 0.373 INCHES MINIMUM AND 0.393 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Hole Configuration Style | HEXAGON FLATS |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.438 INCHES NOMINAL IN |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | OVERALL SILVER |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Hole Quantity | 2 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.060 INCHES MINIMUM AND 0.080 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 |
|---|---|
| J646P27D | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| J646P27D | Sps Technologies, Llc Dba PB Fasteners (USA) |
| J646P27D | Morton Grinding, Inc Dba Morton Manufacturing (USA) |
| J646P27D | Asc International, Inc. Dba Asc International Inc Div Asc International (USA) |
| J646P27D PRIMARY | General Electric Company (USA) |
| J646P27D | J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings (USA) |
| J646P27D | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| J646P27D | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| J646P27D | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-028-8943 is a Bolt,machine, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-028-8943 has 8 manufacturer part numbers on file: J646P27D (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), J646P27D (Sps Technologies, Llc Dba PB Fasteners), J646P27D (Morton Grinding, Inc Dba Morton Manufacturing), J646P27D (Asc International, Inc. Dba Asc International Inc Div Asc International), J646P27D (General Electric Company) and 3 more.
Key specifications for J646P27D: Surface Finish: 32.0 MICROINCHES GRIP; Extended Washer Thickness: 0.090 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN; Head Height: 0.373 INCHES MINIMUM AND 0.393 INCHES MAXIMUM IN; Extended Washer Diameter: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN. 18 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.