AN25-31

Aeronautical Standard Bolt

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Description:

Fastener Length: 1-31/32", Thread: 1/4-24, Thread Length: 1/4"

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AN25-31 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.277 inches minimum
Fastener Length:
1.984 inches nominal
Head Style:
Button
Head Diameter:
0.625 inches nominal
Head Height:
0.156 inches nominal
Groove Diameter:
0.255 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches minimum first hole and 0.086 inches maximum first hole
Single Shear Strength:
5750 pounds per square inch
Internal Drive Style:
Slot
Thread Diameter:
0.312 inches
Thready Qty Per Inch (tpi):
24
Min. Tensile Strength (psi):
125000 pounds per square inch
Hardness Rating:
26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center:
1.797 inches minimum first hole and 1.828 inches maximum first hole
Material:
Steel comp 4140 overall or steel comp 8740 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4130 overall or steel comp 4037 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-6049 mil spec 2nd material response overall or mil-s-6050 mil spec 3rd material response overall or mil-s-6098 mil spec 4th material response overall or mil-s-6758 mil spec 5th material response overall or ams 6300 assn std 6th material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,ty 2 cl 3 fed spec all treatment responses overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 24
Material Steel
Length 1-31/32

Additional Information

SKU / Model: AN2531
NSN: 5306-00-144-3867
FSC: Bolts / 5306
Product Series: AN25
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN25-31_Military-Fasteners-com.pdf
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