NAS623-4-38

Screw

email this to someone  
Description:

Fastener Length: 2-45/64", Thread: 1/4-28, Thread Length: 21/64"

* Manufacturer certifications are shipped with your order FREE of charge
no image available
Add to Quote We are currently out of stock of this item. Click the button below to add this item to a quote and receive up to date pricing and availability by email.

Add to Quote

NAS623-4-38 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.291 inches minimum and 0.341 inches maximum
Fastener Length:
2.676 inches minimum and 2.706 inches maximum
Head Style:
Pan
Head Diameter:
0.473 inches minimum and 0.492 inches maximum
Head Height:
0.162 inches minimum and 0.175 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
Screw Material:
Steel comp 4140 or steel comp e4340 or steel comp 8740
Screw Material Specification:
Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response
Screw Surface Treatment:
Cadmium and chromate
Screw Surface Treatment Specification:
Qq-p-416 ty 2 cl 2 fed spec single treatment response
Thread Series Designator:
Unjf
Specification Data:
80205-nas623 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 2-45/64

Additional Information

SKU / Model: NAS623438
NSN: 5305-00-832-4225
FSC: Screws / 5305
Product Series: NAS623
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 10 EA
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS623-4-38_Military-Fasteners-com.pdf
Worldwide Shipping

* report an issue on this page

More NAS623 machine screws

NAS623-6-6

Fastener Length: 25/32", Thread: 3/8-24, Thread Length: 13/32"

NAS623-5-9

Fastener Length: 15/16in., Thread: 1/4-24, Thread Length: 25/64in., 5305-00-453-6252

NAS623-5-20

$1.14 EA, Fastener Length: 1-5/8in., Thread: 1/4-24, Thread Length: 25/64in.

NAS623-5-14

$4.74 Ea

NAS623-4-9

Machine Screw 5305-00-815-9859 Length: 0.878in., grip: 0.562in., thread: 1/4-28, pan head machine screw short thread philips recess cadmium plated alloy steel

NAS623-4-8

$0.72 Each, Length: 0.816in., grip: 0.500in., thread: 1/4-28, pan head screw short thread philips recess cadmium plated alloy steel

Have a question

If you require a quote on this or any product please visit our quote request page »

Browse our frequently asked questions page.

You may contact us by phone at +1 (904) 543-6395 or email us using our contact form.

Our hours of operation are 8:00am - 6:00pm EST

Customer Reviews

Google View our Google profile

You guys have supplied parts for 3 aircraft over last 4 years. Dont even bother to check other companies. Usually overnight or 2-3 day delivery. Sending back 2 Bendix mag cores for credit. Thanks for being there and providing EXCELLENT, consistent service.

4.5

G'day, Unbelievable fast service, ordered Wednesday, delivery to Romsey, Australia the next Tuesday. Many thanks

4.5

Highly recommend ... amazing customer service ... always going above and beyond my needs. Kindest Regard, Julie with Tactical Air Support, Inc.

5.0

I have been restoring a 1946 Globe Swift over the past year and have relied heavily on Military Fasteners to supply both AN hardware and some aircraft specific parts. The service has been excellent, the expertise in answering some of my questions invaluable. Military Fasteners is my go-to for all my aircraft needs. Thank you all very much.

4.5