NAS623-4-21

Machine Screw

email this to someone

Description:

Fastener Length: 1-41/64", Thread: 1/4-28, Thread Length: 21/64

* Manufacturer certifications are shipped with your order FREE of charge

Add to Cart Up to qty 100 ships same day if ordered before 4pm EST

NAS623-4-21 Price:	buy now $1.85 Each
Quantity: Pre-packaged bag qty: 25 ea
* Sold in increments of 25

Add item to quote

NAS623-4-21 Datasheet Features and Specification

Fastener Length:

Between 1.613 inches and 1.643 inches

Hardness Rating:

Between 36.0 rockwell c and 40.0 rockwell c

Head Diameter:

Between 0.473 inches and 0.492 inches

Head Height:

Between 0.162 inches and 0.175 inches

Head Style:

Pan no. 2

Internal Drive Style:

Cross recess type 1

Min. Tensile Strength (psi):

160000 pounds per square inch

Thread Diameter:

0.250 inches

Screw Material:

Steel comp 4140 or steel comp e4340 or steel comp 8740

Screw Material Specification:

Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 3rd material response

Screw Surface Treatment:

Cadmium and chromate

Screw Surface Treatment Specification:

Qq-p-416 type 2 cl 2 federal specification single treatment response

Specification Data:

80205-nas623 professional/industrial association standard

Thread Class:

Thread Direction:

Right-hand

Thread Length:

Between 0.291 inches and 0.341 inches

Thread Qty Per Inch (tpi):

Thread Series Designator:

Unjf (fine thread with external controlled root radius)

Quick Specs

Thread Size	1/4
Thread Qty	28
Thread Series	UNJF
Thread Class	3A
Material	Steel

Additional Information

SKU / Model:	NAS623421
NSN:	5305-00-878-9472
FSC:	Screws / 5305
Product Series:	NAS623
Pack Weight (Approx.)	0.698 lb
Minimum Qty (MOQ):	25
Schedule B:	7318.15.6080
ECCN:	EAR99
National Motor Freight:	093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version NAS623-4-21_Military-Fasteners-com.pdf

* 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

NAS623-5-12

5305-00-275-3383 Machine Screw

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

Product Image Gallery

Product code NAS623-4-21

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

View our Google profile

Mike F.

At every point, Dania McLean's help was crucial and showed a great dedication to the business. She handled my questions with amazing skill right away, making sure every one of them received a comprehensive and perceptive answer. Her unwavering professionalism and contagious optimism, which made every interaction enjoyable, were what really stood out.

5.0

Cindy P.

Milfas is a great company to work with. They have good prices and great customer service! Ashili and Lindsey are great to work with.

5.0

Rocco P.

As usual & predictably, Military Fasteners comes thru as promised. Sets a higher standard for service, more companies should follow. Thanks again!

5.0

Arianna B.

As always, Military Fasteners demonstrated they value all their customers, in their handling a back order product..Thank you!

4.0