NAS589-31

Screw

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Description:

Fastener Length: 2-55/64", Thread: 1/2-18, Thread Length: 59/64"

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NAS589-31 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.881 inches minimum and 0.931 inches maximum
Fastener Length:
2.829 inches minimum and 2.859 inches maximum
Head Style:
Flat countersunk
Head Diameter:
1.071 inches minimum and 1.141 inches maximum
Grip Diameter:
0.5605 inches minimum and 0.5615 inches maximum
Internal Drive Style:
High-torque
Thread Diameter:
0.562 inches
Grip Length:
1.928 inches minimum and 1.948 inches maximum
Thready Qty Per Inch (tpi):
18
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum overall and 40.0 rockwell c maximum overall
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Material:
Steel comp 4140 overall or steel comp e4340 overall or steel comp 6150 overall or steel comp 8735 overall or steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-5000 mil spec 2nd material response overall or mil-s-8503 mil spec 3rd material response overall or mil-s-6098 mil spec 4th material response overall or mil-s-6049 mil spec 5th material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416 ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator:
Unf
Specification Data:
80205-nas589 professional/industrial association standard
Quick Specs
Thread Size 1/2
Thread Qty 18
Material Steel
Length 2-55/64

Additional Information

SKU / Model: NAS58931
NSN: 5305-00-367-4553
FSC: Screws / 5305
Product Series: NAS589
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS589-31_Military-Fasteners-com.pdf
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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.

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