6620-01-522-8002 INDICATOR,ELECTRICAL TACHOMETER Index 5895-01-522-8004 RECORDER SUBASSEMBLY

National Stock Number:
5305-01-522-8003

Federal Supply Class:
5305

National Item Identification Number:
015228003

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:
7226374-253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH0.750 INCHES NOMINAL
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM
HEAD STYLEHEXAGON
LOCKING FEATUREPATCH OR PELLET OR STRIP OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION0. GRADE 8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIAL FEATURESALTERED ITEM DRAWING
WIDTH BETWEEN FLATS0.429 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES NOMINAL
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24


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