AN531-4-4

Aeronautical Standard Screw

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Description:

Fastener Length: 1/4"

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AN531-4-4 Datasheet Features and Specification

Fastener Length:
0.250 inches nominal
Head Style:
Flat countersunk
Head Diameter:
0.216 inches minimum and 0.225 inches maximum
Internal Drive Style:
Slot
Nonmachine Thread Style:
Dog type (type b or c)
Countersink Angle:
80.0 degrees minimum and 82.0 degrees maximum
Nonmachine Thread Diameter:
0.112 inches
Material:
Steel comp 4130 overall
Material Specification:
Qq-s-685 cond n fed spec single material response overall
Surface Treatment:
Cadmium overall or zinc overall
Quick Specs
Material Steel
Length 1/4

Additional Information

SKU / Model: AN53144
NSN: 5305-00-167-2348
FSC: Screws / 5305
Product Series: AN531
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 35 EA
Schedule B: 7318.15.6080
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN531-4-4_Military-Fasteners-com.pdf
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AN531-4R4

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AN531-4R10

Fastener Length: 5/8"

AN531-10R8

Fastener Length: 1/2"

AN531-10R16

Fastener Length: 0-63/64"

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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.

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My orders have been delivered on time or earlier all packaged well and in good shape. Thank you Military Fasteners.

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