NSN 5306-01-644-9302

Part Details | CLOSE TOLERANCE BOLT

5306-01-644-9302 An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.

Alternate Parts: BACB30NX5HK6, 5306-01-644-9302, 01-644-9302, 5306016449302, 016449302

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 27, 201501-644-930227851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5306-01-644-9302
Part Number Cage Code Manufacturer
BACB30NX5HK681205THE BOEING COMPANYDBA BOEING
Technical Data | NSN 5306-01-644-9302
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJC
NOMINAL THREAD DIAMETER0.1640 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.312 INCHES NOMINAL
FASTENER LENGTH0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM
HEAD STYLE9 CROWNED HEXAGON
INTERNAL DRIVE STYLE HEXAGON
HEAD DIAMETER0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
HEAD HEIGHT0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM
GRIP LENGTH0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
GRIP DIAMETER0.1621 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM
FEATURES PROVIDED CETYL ALCOHOL LUBRICANT
SPECIAL FEATURESBOLT HAS HEX INTERNAL DRIVE WITH .0791 - .0806 INCH WIDTH ACROSS THE FLATS IN THE THREADED END THAT IS .140 INCHES DEEP.
END ITEM IDENTIFICATIONE-3 BLOCK 404
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT, PROTRUDING HEAD