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Externally Relieved Body Screw

Model / MPN: AS91687 | NSN: 5305-00-815-9965
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a diameter less than the pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

Product Details
NATO Stock Number
5305-00-815-9965
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
4.344 inches
Head Style
Fillister
Head Diameter
Between 0.250 inches and 0.270 inches
Head Height
Between 0.141 inches and 0.156 inches
Hole Diameter
0.047 inches
First Diameter From Head
Between 0.159 inches and 0.162 inches
Second Diameter From Head
Between 0.120 inches and 0.125 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.500 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
3.844 inches
Internal Drive Style
Slot
Thread Diameter
0.164 inches
Hole Quantity
1
Hole Type
Drilled
Thready Qty Per Inch (tpi)
32
Hardness Rating
30.0 rockwell c and 35.0 rockwell c
Minimum Yield Strength
130000 pounds per square inch
Hole Configuration Style
Round
Externally Relieved Body Diameter Quantity
1
Material
Steel comp 4640
Material Specification
Sae assn standard single material response
Surface Treatment
Cadmium
Thread Series Designator
Unc

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AS91687 Cross Reference