5306-01-170-6189 BOLT,CLOSE TOLERANCE Index 5305-01-170-6191 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-170-6190

Federal Supply Class:
5305

National Item Identification Number:
011706190

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
14453-5205161888TCM AMERICA, INC SC


Techincal Specification:
FASTENER LENGTH39.50 MILLIMETERS NOMINAL
GRIP DIAMETER9.9800 MILLIMETERS MINIMUM AND 10.0000 MILLIMETERS MAXIMUM
GRIP LENGTH24.50 MILLIMETERS NOMINAL
HARDNESS RATING40.0 SHORE SCLEROSCOPE MINIMUM OVERALL AND 47.0 SHORE SCLEROSCOPE MAXIMUM OVERALL
HEAD HEIGHT7.5 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER10.0 MILLIMETERS
WIDTH BETWEEN FLATS14.0 MILLIMETERS NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH15.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.25


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