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Machine Bolt

Model / MPN: AS91691-12 | NSN: 5306-01-258-6020
ITAR Registered seal

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Product Details
NATO Stock Number
5306-01-258-6020
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.615 inches and 0.695 inches
Fastener Length
Between 0.865 inches and 0.885 inches
Head Style
Double hexagon w/hole
Head Height
Between 0.250 inches and 0.270 inches
Width Between Flats
Between 0.243 inches and 0.251 inches
Extended Washer Diameter
Between 0.365 inches and 0.385 inches
Extended Washer Thickness
Between 0.040 inches and 0.050 inches
Hole Diameter
0.047 inches
Thread Diameter
0.190 inches
Grip Length
Between 0.190 inches and 0.250 inches
Hole Quantity
4
Hole Type
Drilled
Features Provided
Finished head
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
125000 pounds per square inch
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Hole Configuration Style
Double hexagon longitudinal hole
Surface Finish
32.0 microinches threads
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Color
Black
Material
Steel comp 8740
Material Specification
Ams 6322 assn standard single material response
Surface Treatment
Oxide
Surface Treatment Specification
Ams 2485 assn standard single treatment response
Thread Series Designator
Unf
AS91691 Series Parts

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AS91691-12 Cross Reference
  • MS9169-12
  • MS9169-12
  • MS9169-12
  • MS9169-12
  • MS9169-12