NAS517-4-40

Machine Screw

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Description:

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

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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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Fantastic service. Part ordered Monday. Received Wednesday Though customs etc and across America the North Atlantic then UK. Amazing well done and thanks.

5.0

Amazingly prompt response! I ordered over 1000 items and couldn't believe it when there was an email waiting the following morning saying the items had been dispatched. Easy to track the package online. By comparison I ordered some items from another supplier 3 months ago and I'm still waiting, with no apologies or communication emanating from them to explain the delay.

5.0

Products are military grade MIL-SPEC as advertised. I was able to locate #10 locking counter-sunk nutplates when ALL other locations, including Aircraft-Spruce, could not supply.

5.0

10/10 love working with Amanda! She’s always eager to get on the phone with customers and ready to get their orders out the door.

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