5305-00-576-6739 SETSCREW Index 5305-00-576-6742 SETSCREW

National Stock Number:
5305-00-576-6741

Federal Supply Class:
5305

National Item Identification Number:
005766741

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
AN565D428H588044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
FASTENER LENGTH0.312 INCHES NOMINAL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 4 STYLE
POINT STYLECUP
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD LENGTH0.312 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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