- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.5270 inches minimum and 0.5470 inches maximum
- Fastener Length
- 0.5520 inches minimum and 0.5720 inches maximum
- Head Style
- Double hexagon extended washer
- Head Height
- 0.3280 inches minimum and 0.3480 inches maximum
- Width Between Flats
- 0.3750 inches nominal
- Extended Washer Diameter
- 0.4900 inches minimum and 0.5100 inches maximum
- Extended Washer Thickness
- 0.1660 inches minimum
- Grip Diameter
- 0.2800 inches minimum and 0.2900 inches maximum
- End Item Identification
- F-35B lift fan
- Nominal Thread Diameter
- 0.3125 inches
- Grip Length
- 0.0250 inches minimum
- Thread Quantity per Inch
- 24
- 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.