NAS517-4-40

Machine Screw

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Description:

Fastener Length: 2-63/64", Thread: 1/4-28, Thread Length: 1/2",

* Manufacturer certifications are shipped with your order FREE of charge
NAS517-4-40
NAS517-4-40
NAS517-4-40
NAS517-4-40
NAS517-4-40
NAS517-4-40
Add to Cart Up to qty 6 ships same day if ordered before 4pm EST
NAS517-4-40 Price:
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$65.93 Each
Quantity:
Pre-packaged bag qty: 1 ea
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NAS517-4-40 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.367 inches minimum and 0.513 inches maximum
Fastener Length:
2.953 inches minimum and 2.998 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-p-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 2-63/64

Additional Information

SKU / Model: NAS517440
NSN: 5305-00-550-0141
FSC: Screws / 5305
Product Series: NAS517
Pack Weight (Approx.) 0.046 lb
Minimum Qty (MOQ): 1
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS517-4-40_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 NAS517-4-40
NAS517-4-40
NAS517-4-40
NAS517-4-40
NAS517-4-40
NAS517-4-40
NAS517-4-40

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5.0

I have been a customer since Fullerton Air Parts (Flo Irwin). That should speak volumes of the service I have received from Military Fasteners. In the early days, I had a variety of planes and was based out of Orange County Airport. At the time, the airport was surrounded by bean fields. I, and some of my friends, would frequently fly into Fullerton airport for lunch, the pick up whatever supplies we needed from Flo. She was a great lady, and I am glad that she passed on such a wonderful legacy. I am certain that she would be very proud of what she started, and proud of you all for building on her meager beginnings.

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