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:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.312 INCHES MAXIMUM
FASTENER LENGTH0.312 INCHES NOMINAL
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND
53.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND
0.127 INCHES MAXIMUM
POINT STYLECUP
NONDEFINITIVE SPEC/STD DATA1 TYPE AND
4 STYLE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN565D428H5


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