NATO Stock Number
5306-00-022-8085
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.490 inches and 0.570 inches
Fastener Length
Between 1.640 inches and 1.660 inches
Head Style
Flat extended washer
Head Diameter
Between 0.880 inches and 0.900 inches
Head Height
0.115 inches
Extended Washer Diameter
Between 0.450 inches and 0.470 inches
Extended Washer Thickness
Between 0.010 inches and 0.015 inches
Shoulder Diameter
0.279 inches second shoulder and 0.281 inches second shoulder
Shoulder Diameter
0.285 inches first shoulder and 0.295 inches first shoulder
Shoulder Length
0.060 inches first shoulder
Shoulder Length
0.340 inches second shoulder
Rib Major Diameter
Between 0.279 inches and 0.281 inches
Rib Length
0.340 inches
Distance From Largest Diameter Of Bearing Surface Of Head To Ribs
Between 0.240 inches and 0.260 inches
Rib Minor Diameter
Between 0.260 inches and 0.266 inches
Rib Quantity
35
End Application
Scavenge pump, tf-33
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Hardness Rating
35.0 rockwell c and 40.0 rockwell c
Rib Included Angle
45.0 degrees
Shoulder Shape
Ribbed second shoulder
Shoulder Shape
Round first shoulder
Material
Steel comp 8740
Material Specification
Ams 6322 assn standard single material response
Thread Series Designator
Unf
