NAS517-4-4

Machine Screw

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Description:

length: 0.719", grip: 0.250", thread: 1/4-28 shear, close tolerance, alloy steel

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NAS517-4-4
NAS517-4-4
NAS517-4-4
NAS517-4-4
NAS517-4-4
NAS517-4-4
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NAS517-4-4 Datasheet Features and Specification

Thread Series Designator:
Unf (fine thread)
Thread Length:
Between 0.368 inches and 0.514 inches
Thread Qty Per Inch (tpi):
28
Thread Diameter:
0.250 inches
Thread Direction:
Right-hand
Surface Treatment Specification:
Qq-p-416 type 2 cl 3 federal specification single treatment response
Thread Class:
3a
Surface Treatment:
Cadmium and chromate
Material Specification:
Mil-s-6050 military specification single material response or an-s-9 military standard single material response
Internal Drive Style:
Cross recess type 1
Min. Tensile Strength (psi):
160000 pounds per square inch
Material:
Steel
Head Style:
Flat countersunk
Head Diameter:
Between 0.452 inches and 0.510 inches
Hardness Rating:
Between 36.0 rockwell c and 40.0 rockwell c
Fastener Length:
Between 0.704 inches and 0.749 inches
Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNF
Thread Class 3A
Drive Style Cross
Material Steel

Additional Information

SKU / Model: NAS51744
NSN: 5305-00-206-3643
FSC: Screws / 5305
Product Series: NAS517
Pack Weight (Approx.) 1.010 lb
Minimum Qty (MOQ): 100
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS517-4-4_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

Fastener Length: 1-13/64in., Thread: 3/8-24, Thread Length: 21/32in., 5305-00-207-1791

NAS517-6-6

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

NAS517-6-5

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NAS517-6-28

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NAS517-6-27

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Product Image Gallery

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

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5.0

As always, goods exactly as ordered, packaged well, shipped promptly...doesnt get any better. Thank you.

5.0

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.

5.0

I just started an Ultra Light project and have been very happy with the orders I've placed with ACS.

5.0