The Bolt,machine, cataloged under National Stock Number 5306-01-210-1639, 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 13 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-210-1639 |
| Primary Part Number | J904P04A |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Head Height | 0.167 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN |
| Fastener Length | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Thread Length | 0.544 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Material Document and Classification | C50TF13 CL-B FSCM 07482 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| J904P04A PRIMARY | General Electric Company (USA) |
| J904P04A | Acufast Aircraft Products (USA) |
| Reference | Meaning |
|---|---|
| J904P04A | 5/9 Secondary reference Moeller Mfg. Company, Llc Div Aircraft |
| J904P04A | 5/9 Secondary reference Morton Grinding, Inc Dba Morton Manufacturing |
| J904P04A | 5/9 Secondary reference Morton Fasteners Inc |
| J904PO4A | 5/9 Secondary reference M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| J904P04A | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
NSN 5306-01-210-1639 is a Bolt,machine, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-210-1639 has 2 manufacturer part numbers on file: J904P04A (General Electric Company), J904P04A (Acufast Aircraft Products).
Key specifications for J904P04A: Head Height: 0.167 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN; Fastener Length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN; Thread Length: 0.544 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN; Material Document and Classification: C50TF13 CL-B FSCM 07482 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 13 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.