The Bolt,machine, cataloged under National Stock Number 5306-01-006-4983, 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 22 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-006-4983 |
| Primary Part Number | J644P20C |
| 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 |
| Surface Finish | 125.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Head Height | 0.293 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN |
| Fastener Length | 1.428 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Precious Material | SILVER |
| Thread Length | 0.740 INCHES MINIMUM AND 0.756 INCHES MAXIMUM IN |
| Material Document and Classification | INCONEL FSCM 74900 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.682 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN |
| Width Between Flats | 0.312 INCHES NOMINAL IN |
| Surface Treatment | SILVER OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| 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 |
|---|---|
| J644P20C | Sps Technologies, Llc Dba PB Fasteners (USA) |
| J644P20C | Huck International, Inc (USA) |
| J644P20C | Asc International, Inc. Dba Asc International Inc Div Asc International (USA) |
| J644P20C | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| J644P20C PRIMARY | General Electric Company (USA) |
| J644P20C | J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings (USA) |
| J644P20C | Bristol Industries, Llc (USA) |
| J644P20C | Morton Grinding, Inc Dba Morton Manufacturing (USA) |
| J644P20C | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| J644P20C | Howmet Global Fastening Systems Inc (USA) |
NSN 5306-01-006-4983 is a Bolt,machine, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-006-4983 has 10 manufacturer part numbers on file: J644P20C (Sps Technologies, Llc Dba PB Fasteners), J644P20C (Huck International, Inc), J644P20C (Asc International, Inc. Dba Asc International Inc Div Asc International), J644P20C (Valley-Todeco, Inc. Dba Arconic Fastening Systems), J644P20C (General Electric Company) and 5 more.
Key specifications for J644P20C: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 125.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.060 INCHES MINIMUM AND 0.070 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.