AN5-31

Aeronautical Standard Machine Bolt

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Description:

length: 3-7/32", grip: 2-11/16", thread: 5/16-24, cadmium plated steel drilled shank"

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AN5-31 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.531 inches minimum
Fastener Length:
3.219 inches nominal
Head Style:
Hexagon
Head Height:
0.172 inches minimum and 0.204 inches maximum
Width Between Flats:
0.490 inches minimum and 0.502 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches nominal first hole
Thread Diameter:
0.312 inches
Grip Length:
2.688 inches nominal
Features Provided:
Finished head
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:
3.047 inches nominal first hole
Material:
Steel comp 4037 overall or steel comp 4130 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 8740 overall or steel comp 4140 overall
Material Specification:
Mil-b-6812 mil spec all material responses overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,type 2,class 3 fed spec all treatment responses overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 24
Material Steel
Length 3-7/32

Additional Information

SKU / Model: AN531
NSN: 5306-00-151-0912
FSC: Bolts / 5306
Product Series: AN5
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 10
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN5-31_Military-Fasteners-com.pdf
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AN5H5A

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AN5H4A

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AN5H34

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AN5H32

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I placed an order with Lindsey at Military Fasteners late afternoon, 3:15 to be exact and she was nice enough to expedite my order and made sure to get it shipped that day. Great company with great people.

5.0

Great supplier, great products, great prices. Trisha Hawkins hooked us up with the bolts we needed in a very efficient and friendly manner.

5.0

Very good service as always. Ive been a customer for years. My go to parts store.

4.0

Thanks for being there for us small plane owners. It has never been cheap to own a plane but as our planes age it is getting harder and harder to find parts for upkeep. Good fast service also.

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