5305-01-163-0521 SCREW,CAP,HEXAGON HEAD Index 5305-01-163-0523 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-163-0522

Federal Supply Class:
5305

National Item Identification Number:
011630522

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
35A2A150AT62SIEMENS ENERGY, INC.
35A2A15830Q4CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
35A2A1588663DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE


Techincal Specification:
FASTENER LENGTH3.000 INCHES NOMINAL
HEAD HEIGHT0.281 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
WIDTH BETWEEN FLATS0.438 INCHES NOMINAL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.900 INCHES MINIMUM AND 3.000 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNC


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