NAS517-4-31

Screw

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Description:

Fastener Length: 2-27/64", Thread: 1/4-28, Thread Length: 1/2

* Manufacturer certifications are shipped with your order FREE of charge
NAS517-4-31
NAS517-4-31
NAS517-4-31
NAS517-4-31
NAS517-4-31
NAS517-4-31
Add to Cart Up to qty 200 ships same day if ordered before 4pm EST
NAS517-4-31 Price:
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$2.11 Each
Quantity:
Pre-packaged bag qty: 25 ea
* Sold in increments of 25
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NAS517-4-31 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.367 inches minimum and 0.513 inches maximum
Fastener Length:
2.391 inches minimum and 2.436 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.452 inches minimum and 0.510 inches maximum
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Screw Material:
Steel comp 8630
Screw Material Specification:
Mil-s-6050 mil spec single material response or an-s-9 mil std single material response
Screw Surface Treatment:
Cadmium and chromate
Screw Surface Treatment Specification:
Qq-b-416,ty 2,cl 3 fed spec all treatment responses
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 2-27/64

Additional Information

SKU / Model: NAS517431
NSN: 5305-00-839-5005
FSC: Screws / 5305
Product Series: NAS517
Pack Weight (Approx.) 0.835 lb
Minimum Qty (MOQ): 25
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS517-4-31_Military-Fasteners-com.pdf
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More NAS517 machine screws

NAS517-8-6

Fastener Length: 1-9/64", Thread: 1/2-20, Thread Length: 25/32"

NAS517-6-9

$2.10 EA, Fastener Length: 1-13/64in., Thread: 3/8-24, Thread Length: 21/32in.

NAS517-6-6

$3.90 EA, Fastener Length: 63/64in., Thread: 3/8-24, Thread Length: 21/32in.

NAS517-6-5

$1.50 EA, Fastener Length: 61/64in., Thread: 3/8-24, Thread Length: 21/32in.

NAS517-6-28

$44.70 Ea

NAS517-6-27

Fastener Length: 2-21/64", Thread: 3/8-24, Thread Length: 21/32"

Product Image Gallery

Product code NAS517-4-31
NAS517-4-31
NAS517-4-31
NAS517-4-31
NAS517-4-31
NAS517-4-31
NAS517-4-31

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I worked with Isaac Beltran and he did a great job and rare to find.....someone with attention to detail.

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5.0

Order was placed with ease, confirmation received in minutes, delivery by UPS ground in one day. Reasonable price, easy installation. Great service as always.

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Trisha Hawkins over at Military Fasteners was friendly, speedy and very helpful for me as a buyer!

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