NAS1580A4R31D

Bolt

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Description:

Fastener Length: 2-11/32", Thread: 1/4-28, Thread Length: 3/8"

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NAS1580A4R31D Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.403 inches nominal
Fastener Length:
2.326 inches minimum and 2.356 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.464 inches minimum and 0.506 inches maximum
Grip Diameter:
0.2485 inches minimum and 0.2495 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches minimum first hole and 0.086 inches maximum first hole
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
1.928 inches minimum and 1.948 inches maximum
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Distance From Head Largest Bearing Surface To Shank Hole Center:
2.262 inches minimum first hole and 2.312 inches maximum first hole
Material:
Steel comp 4140 overall and steel comp e4340 overall and steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec single material response overall and mil-s-5000 mil spec single material response overall and mil-s-6049 mil spec single material response overall
Surface Treatment:
Cadmium overall
Surface Treatment Specification:
Qq-p-416 ty ii cl 2 fed spec single treatment response overall
Thread Series Designator:
Unjf
Specification Data:
80205-nas1580 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 2-11/32

Additional Information

SKU / Model: NAS1580A4R31D
NSN: 5305-01-460-8253
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: 9A991
Download PDF Version
NAS1580A4R31D_Military-Fasteners-com.pdf
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