The Bolt,machine, cataloged under National Stock Number 5306-01-648-3004, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Saturn Fasteners Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-648-3004 |
| Primary Part Number | NAS428CH6A12 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Saturn Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.203 INCHES NOMINAL IN |
| Fastener Length | 1.453 INCHES NOMINAL IN |
| Thread Length | 1.250 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.3750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.563 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.070 INCHES NOMINAL 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 |
|---|---|
| NAS428CH6A12 | Saturn Fasteners Inc (USA) |
| NAS428CH6A12 | Fastener Technology Corp (USA) |
| NAS428CH6A12 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| NAS428CH6A12 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| NAS428CH6A12 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| NAS428CH6A12 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| NAS428CH6A12 | 3/2 Design control — primary reference U.S. Government activity |
| NAS428 | 3/1 Design control — primary reference U.S. Government activity |
| NAS428CH6A12 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-648-3004 is a Bolt,machine, manufactured by Saturn Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-648-3004 has 6 manufacturer part numbers on file: NAS428CH6A12 (Saturn Fasteners Inc), NAS428CH6A12 (Fastener Technology Corp), NAS428CH6A12 (Howmet Global Fastening Systems Inc Div City of Industry Operations), NAS428CH6A12 (Sps Technologies, Llc Dba PB Fasteners), NAS428CH6A12 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 1 more.
6 possible matches (shared part number, not a government interchangeability claim): 5306-01-648-3005, 5306-01-648-3006, 5306-01-648-3008. Verify interchangeability with system specifications before substitution.
Key specifications for NAS428CH6A12: Head Height: 0.203 INCHES NOMINAL IN; Fastener Length: 1.453 INCHES NOMINAL IN; Thread Length: 1.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.3750 INCHES IN. 12 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.