5305-00-579-0550 SCREW,MACHINE Index 5305-00-579-0552 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-579-0551

Federal Supply Class:
5305

National Item Identification Number:
005790551

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
AN14858388044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
HOLE CONFIGURATION STYLEROUND
HOLE TYPEDRILLED
HOLE QUANTITY6
HOLE DIAMETER0.047 INCHES NOMINAL
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
63.0 MICROINCHES GRIP
32.0 MICROINCHES THREADS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.553 INCHES MINIMUM AND
0.695 INCHES MAXIMUM
FASTENER LENGTH2.740 INCHES MINIMUM AND
2.760 INCHES MAXIMUM
MATERIALSTEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND
36.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.365 INCHES MINIMUM AND
0.385 INCHES MAXIMUM
HEAD HEIGHT0.195 INCHES MINIMUM AND
0.215 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.188 INCHES MINIMUM AND
0.190 INCHES MAXIMUM
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN148583


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