NAS623-4-21

Machine Screw

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Description:

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

* Manufacturer certifications are shipped with your order FREE of charge
NAS623-4-21
NAS623-4-21
NAS623-4-21
NAS623-4-21
NAS623-4-21
NAS623-4-21
Add to Cart Up to qty 100 ships same day if ordered before 4pm EST
NAS623-4-21 Price:
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$1.94 Each
Quantity:
Pre-packaged bag qty: 25 ea
* Sold in increments of 25
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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:
3a
Thread Direction:
Right-hand
Thread Length:
Between 0.291 inches and 0.341 inches
Thread Qty Per Inch (tpi):
28
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
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Product Image Gallery

Product code NAS623-4-21
NAS623-4-21
NAS623-4-21
NAS623-4-21
NAS623-4-21
NAS623-4-21
NAS623-4-21

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Small order but all was in stock, sales rep was very friendly and made it a pleasure. Shipped and received quicker than expected.

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In dealing with Military Fasteners for 3 plus years, I can honestly say Ive never had a bad experience with the company. Please keep up the great work and youll keep me coming back for as long as I am flying.

4.0

Order was placed with ease, confirmation received in minutes, delivery by UPS ground in one day. Reasonable price, easy installation. Great service as always.

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Great Service, very satisfied with ordering form your company. I have ordered several items and nothing has been incorrect or delayed. Large inventory to choose from, website design is very good and easy to navigate Keep up the good work

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