NSN 5306-00-143-2796

Part Details | CLOSE TOLERANCE BOLT

5306-00-143-2796 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: GY221261, GY22-12-61, GY221261, GY22-12-61, GY221261, GY22-12-61, 5306-00-143-2796, 00-143-2796, 5306001432796, 001432796

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 11, 196800-143-279627851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-143-2796
Part Number Cage Code Manufacturer
GY22-12-6173842GOODYEAR TIRE AND RUBBER CO THE
GY22-12-610B9R9MEGGITT AIRCRAFT BRAKING SYSTEMSCORPORATION
GY22-12-6156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
Technical Data | NSN 5306-00-143-2796
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.156 INCHES MINIMUM
FASTENER LENGTH4.874 INCHES NOMINAL
HEAD STYLE0 HEXAGON
HEAD HEIGHT0.711 INCHES NOMINAL
WIDTH BETWEEN FLATS0.803 INCHES MINIMUM AND 0.814 INCHES MAXIMUM
EXTENDED WASHER DIAMETER1.225 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.178 INCHES NOMINAL
GRIP LENGTH3.718 INCHES NOMINAL
GRIP DIAMETER0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM