AN5-57A

Aeronautical Standard Bolt

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Description:

Fastener Length: 5-31/32", Thread: 1/4-24, Thread Length: 1/2"

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AN5-57A Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.531 inches minimum
Fastener Length:
5.969 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
Thread Diameter:
0.312 inches
Grip Length:
5.438 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
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 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 5-31/32

Additional Information

SKU / Model: AN557A
NSN: 5306-00-151-0997
FSC: Bolts / 5306
Product Series: AN5
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
AN5-57A_Military-Fasteners-com.pdf
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In dealing with Military Fasteners for 3 plus years, I can honestly say Ive never had a bad experience with the company. Please keep up the great work and youll keep me coming back for as long as I am flying.

4.0

I was looking for hard to find parts for a safety critical application. The first couple of places I tried had the part on their web page but when I tried to order it they said, sorry, they did not actually have the parts. I called Military Fasteners. Talked to an employee without delay. She looked up the part number, told me who manufactured them (important), where the company is located (very important) and shipped the parts immediately from their own inventory. Super nice, helpful, efficient and knowledgeable. They get it.

5.0

Jasmine is great! Very kind and helpful. My parts came in EARLY and shipped the same day I ordered!

5.0

Parts were described exactly as received. Delivered exactly as promised. I was treated better than could have been expected. Give a 5.5 stars out of 5.

5.0