NSN 5306-01-337-5444

Part Details | CLOSE TOLERANCE BOLT

5306-01-337-5444 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: BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, BACB30UU919, BACB30UU9-19, 5306-01-337-5444, 01-337-5444, 5306013375444, 013375444

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 17, 199101-337-544427851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-01-337-5444
Part Number Cage Code Manufacturer
BACB30UU9-1992215ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30UU9-1917943FEDERAL MANUFACTURING CORPORATION
BACB30UU9-1917446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BACB30UU9-1997928HUCK INTL INC
BACB30UU9-1957928SONIC INDUSTRIES INC.
BACB30UU9-1956878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
BACB30UU9-1906725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
BACB30UU9-1927624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
BACB30UU9-1981205THE BOEING COMPANYDBA BOEING
BACB30UU9-1906710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-01-337-5444
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.562 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.605 INCHES NOMINAL
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM
GRIP LENGTH1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT