- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 1.0850 inches minimum and 1.1050 inches maximum
- Fastener Length
- 1.1150 inches minimum and 1.1350 inches maximum
- Head Style
- Double hexagon extended washer
- Head Height
- 0.4440 inches minimum and 0.4640 inches maximum
- Width Between Flats
- 0.5000 inches nominal
- Extended Washer Diameter
- 0.6780 inches minimum and 0.6980 inches maximum
- Extended Washer Thickness
- 0.2020 inches minimum
- Grip Diameter
- 0.4000 inches minimum and 0.4100 inches maximum
- End Item Identification
- F-35B lift fan
- Nominal Thread Diameter
- 0.4375 inches
- Grip Length
- 0.0300 inches minimum
- Thread Quantity per Inch
- 20
- Chamfer Angle
- 28.0 degrees minimum and 32.0 degrees maximum
- Part Name Assigned BY Controlling Agency
- Bolt, machine, double hexagon head, P.D. shank, 185 ksi
- Special Features
- Next higher assembly is liftfan assembly module
- Material
- Nickel alloy 718 overall
- Thread Series Designator
- UNJF
Catalogue data is compiled from public DLA/FLIS sources and is provided for
identification. Availability, condition and certification are confirmed on
quotation. OmniSynk Distribution Services is a stocking distributor.