5305-01-578-5236 SCREW,CAP,HEXAGON HEAD Index 5305-01-578-5306 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-578-5280

Federal Supply Class:
5305

National Item Identification Number:
015785280

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:
AN565E428H388044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
NASM565E428H388044AERONAUTICAL 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
FASTENER LENGTH0.178 INCHES MINIMUM AND
0.198 INCHES MAXIMUM
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND
0.127 INCHES MAXIMUM
POINT STYLEHALF DOG
POINT LENGTH0.063 INCHES NOMINAL
POINT DIAMETER0.149 INCHES MINIMUM AND
0.156 INCHES MAXIMUM
POINT CHAMFER ANGLE30.0 DEGREES MINIMUM AND
40.0 DEGREES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYSETSCREW HEXAGON AND FLUTED SOCKET, HEADLESS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCENASM565E428H3


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