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Modified Pan Head Machine Screw NAS1143-1

Description:

Cadmium plated alloy steel, length: 0.338", thread: 10-32, modified pan head machine screw, close tolerance, short thread, offset cruciform recess

NAS1143-1 Details

National Stock Number (NSN) 5305-00-941-6409
Alternate Part Number N/A
Federal Supply Class (FSC) 5305
Unit of Measure (UOM) 10 /Ea.
Thread Class 3a
Thread Direction Right-hand
Thread Length Between 0.251 inches and 0.301 inches
Fastener Length Between 0.323 inches and 0.353 inches
Head Style Pan
Head Diameter Between 0.361 inches and 0.385 inches
Head Height Between 0.103 inches and 0.118 inches
Grip Diameter Between 0.1885 inches and 0.1895 inches
Internal Drive Style Offset cruciform (torque set)
Thread Diameter 0.190 inches
Grip Length Between 0.052 inches and 0.072 inches
Thready Qty Per Inch (tpi) 32
Min. Tensile Strength (psi) 160000 pounds per square inch
Hardness Rating 36.0 rockwell c and 40.0 rockwell c
Surface Finish 32.0 microinches bearing surface of head
Surface Finish 32.0 microinches grip
Surface Finish 32.0 microinches threads
Material Steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416 type 2 cl 3 federal specification single treatment response
Thread Series Designator Unjf
Specification Data 80205-nas1143 professional/industrial association standard

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