The Bolt,machine, cataloged under National Stock Number 5306-01-676-1728, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Blanc Aero Industrie Villefranche De Rouergue - Groupe Lisi Aerospace. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-676-1728 |
| Primary Part Number | BACB30ZF-4-26 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Blanc Aero Industrie Villefranche De Rouergue - Groupe Lisi Aerospace |
| Status | ACTIVE |
| Extended Washer Thickness | 0.060 INCHES NOMINAL IN |
| Head Height | 0.303 INCHES NOMINAL IN |
| Fastener Length | 1.760 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.438 INCHES NOMINAL IN |
| Thread Length | 0.760 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.000 INCHES MAXIMUM IN |
| Width Between Flats | 0.313 INCHES MAXIMUM IN |
| Grip Diameter | 0.232 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE 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 |
|---|---|
| BACB30ZF-4-26 | Blanc Aero Industrie Villefranche De Rouergue - Groupe Lisi Aerospace (FRA) |
| BACB30ZF-4-26 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| Reference | Meaning |
|---|---|
| BACB30ZF-4-26 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-676-1728 is a Bolt,machine, manufactured by Blanc Aero Industrie Villefranche De Rouergue - Groupe Lisi Aerospace, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-676-1728 has 2 manufacturer part numbers on file: BACB30ZF-4-26 (Blanc Aero Industrie Villefranche De Rouergue - Groupe Lisi Aerospace), BACB30ZF-4-26 (Howmet Global Fastening Systems Inc Div City of Industry Operations).
Key specifications for BACB30ZF-4-26: Extended Washer Thickness: 0.060 INCHES NOMINAL IN; Head Height: 0.303 INCHES NOMINAL IN; Fastener Length: 1.760 INCHES MAXIMUM IN; Extended Washer Diameter: 0.438 INCHES NOMINAL IN. 16 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.