The Bolt,machine, cataloged under National Stock Number 5306-01-318-4687, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-318-4687 |
| Primary Part Number | J646P23A |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Extended Washer Thickness | 0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Head Height | 0.373 INCHES MINIMUM AND 0.393 INCHES MAXIMUM IN |
| Fastener Length | 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Thread Length | 0.565 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Material Document and Classification | C590TF13 CL-B CAGEC 07482 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.438 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| J646P23A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| J646P23A | J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings (USA) |
| J646P23A PRIMARY | General Electric Company (USA) |
| J646P23A | Bristol Industries, Llc (USA) |
| J646P23A | Morton Grinding, Inc Dba Morton Manufacturing (USA) |
| J646P23A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| J646P23A | Asc International, Inc. Dba Asc International Inc Div Asc International (USA) |
| J646P23A | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| J646P23A | 5/2 Secondary reference U.S. Government activity |
| J646P23A | 5/9 Secondary reference Mecair Aerospace Industries,subsidiary of Spstechnologiesdiv Division of Sps Technologiesdba Mecair Inc. Div Division of Sps Technologies |
NSN 5306-01-318-4687 is a Bolt,machine, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-318-4687 has 8 manufacturer part numbers on file: J646P23A (Sps Technologies, Llc Dba PB Fasteners), J646P23A (J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings), J646P23A (General Electric Company), J646P23A (Bristol Industries, Llc), J646P23A (Morton Grinding, Inc Dba Morton Manufacturing) and 3 more.
Key specifications for J646P23A: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Extended Washer Thickness: 0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; Head Height: 0.373 INCHES MINIMUM AND 0.393 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.