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NAS623-4-8 Short Threaded Machine Screw, 1/4-28, UNJF, 0.291 to 0.341 in L Thread

Hardware - Misc
Part # NAS623-4-8=28
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TECHNICAL INFORMATION
• National Aerospace Standard
• AMS-QQ-P-416 Type II Class 2
• MIL-S-5626/MIL-S-5000/MIL-S-6049 Qualified
• FAA-STD Approved

SPECIFICATIONS
• Diameter: 1/4 in
• Length: 0.816 in
• Thread Size: 1/4-28
• Thread Type: UNJF
• Head Type: Pan
• Thread Direction: Right Hand
• Material: Alloy Steel
• Drive Type: Phillips
• Finish: Cadmium
• Thread Length: 0.291 to 0.341 in
• Thread Class: 3A
• Head Diameter: 0.473 to 0.492 in
• Head Height: 0.162 to 0.175 in
• Grip Size: 1/2 in
• Grade: 4140/E4340/8740
• Tensile Strength: 160000 psi
• Domestic/Import: Domestic
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NSN
 
Cage Code
31222 
Country of origin
United States 
ECCN / USML
EAR99 
Schedule B
7318159000 
Dimensions (L x W x H)
1 x .44 x .44 IN
Total Shelf Life (days)
No Information
Hazmat Code
Package Weight
.02 LB
FAA Approval Code
STD
ISBN
 
Condition
Color
 
Brand
 
Hazmat(Y/N)
N 
LTL(Y/N)
N 
8130-3 Eligible
No 
Forecasted
Yes

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