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Worldwide distributor of NSN parts and consumables located in the USA.

100°, Flush Head Screw NAS517-4-5

Description:

Length: 0.781", grip: 0.312", thread: 1/4-28, shear, close tolerance screw, alloy steel

NAS517-4-5 Details

National Stock Number (NSN) 5305-00-208-8326
Alternate Part Number N/A
Federal Supply Class (FSC) 5305
Unit of Measure (UOM) 100 /Ea.
Thread Class 3a
Thread Direction Right-hand
Thread Length 0.469 inches
Fastener Length 0.781 inches
Head Style Flat countersunk
Head Diameter Between 0.452 inches and 0.510 inches
Internal Drive Style Cross recess type ii
Thread Diameter 0.250 inches
Thready Qty Per Inch (tpi) 28
Min. Tensile Strength (psi) 160000 pounds per square inch
Hardness Rating Between 36.0 rockwell c and 40.0 rockwell c
Countersink Angle 100.0 degrees
Screw Material Steel
Screw Surface Treatment Cadmium
Thread Series Designator Unf

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