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

$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

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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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I have used Military Fasteners for all my parts for a number of years and have never had a problem with my orders. Fast shipping, correct parts picking and lots of inventory. Thanks for your service.

5.0

I recently requested a quote and placed an order with Kristen Belmont. Kristen was incredibly helpful, prompt, and informative, addressing all of my inquiries and requests efficiently. I am extremely grateful to have had Kristen's assistance.

5.0

Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.

5.0

Military Fasteners never fails to have exactly what I am looking for and at a great price as well. Their quick turnaround allows me to have what I order in hand before my deadlines. Would definitely recommend them every time.

5.0