NAS623-4-1

Screw

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Description:

Fastener Length: 25/64", Thread: 1/4-28, Thread Length: 21/64"

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NAS623-4-1 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.291 inches minimum and 0.341 inches maximum
Fastener Length:
0.363 inches minimum and 0.393 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 25/64

Additional Information

SKU / Model: NAS62341
NSN: 5305-00-853-5768
FSC: Screws / 5305
Product Series: NAS623
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 50 EA
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS623-4-1_Military-Fasteners-com.pdf
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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

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I placed an order with Lindsey at Military Fasteners late afternoon, 3:15 to be exact and she was nice enough to expedite my order and made sure to get it shipped that day. Great company with great people.

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Best order yet. I build masts for RC sailboats and perfect stock is a must. Whoever picked this order outdid themselves. Thanks Military Fasteners for another order of great material.

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Brittany has always provided me with excellent service on phone calls and in emails! Brittany is always extremely helpful, friendly and she goes the extra mile to help! Thank you very much Brittany!!

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As a maintenance and parts support operation (over 40 years in the business) I depend on a lot of suppliers to keep the aircraft we maintain and their owners happy. It is my experience that your company offers top notch customer support in every way and I can depend on my orders getting out as expected and delivered as soon as possible. It is a pleasure being one of your dealers. Thank you for your good service!

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