AN4-55A

Aeronautical Standard Machine Bolt

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Description:

length: 5-21/32, grip: 5-3/16", thread: 1/4-28, cadmium plated steel, undrilled shank

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AN4-55A Datasheet Features and Specification

Fastener Length:
Between 5.641 inches and 5.688 inches
Features Provided:
Finished head
Grip Length:
Between 5.172 inches and 5.203 inches
Hardness Rating:
26.0 rockwell c and 32.0 rockwell c
Head Height:
Between 0.140 inches and 0.172 inches
Head Style:
Hexagon
Material:
Steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 4130 or steel comp 4037
Min. Tensile Strength (psi):
125000 pounds per square inch
Thread Diameter:
0.250 inches
Surface Treatment:
Cadmium and chromate
Surface Treatment Specification:
Class 3 federal specification single treatment response type 2 qq-p-416
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
Between 0.438 inches and 0.516 inches
Thread Qty Per Inch (tpi):
28
Thread Series Designator:
Unf (fine thread)
Width Between Flats:
Between 0.428 inches and 0.440 inches
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNF
Thread Class 3A
Material Steel

Additional Information

SKU / Model: AN455A
NSN: 5306-00-151-1095
FSC: Bolts / 5306
Product Series: AN4
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 2
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN4-55A_Military-Fasteners-com.pdf
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AN4H7

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AN4H6A

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AN4H66A

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AN4H60A

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AN4H6

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I have been a customer for years and have never had a problem with any orders. Please keep up the good work :)

4.0

Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.

5.0

Excellent service! Trisha Hawkins is so polite, easy to work with and an awesome customer service! Highly recommended!

5.0

Prompt fulfillment of order and accurate and secure packaging. Also, competitive prices with no minimum order requirements. military fasteners is the best.

5.0