NSN 5306-00-377-5606

Part Details | CLOSE TOLERANCE BOLT

5306-00-377-5606 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: ST217902, ST2179-02, ST217902, ST2179-02, ST217902, ST2179-02, 5306-00-377-5606, 00-377-5606, 5306003775606, 003775606

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 16, 197400-377-560627851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

DOUBLE HEXAGON LONGITUDINAL HOLE

Cross Reference | NSN 5306-00-377-5606
Part Number Cage Code Manufacturer
ST2179-020UCY9M.S. AEROSPACE INC.
ST2179-0256878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
ST2179-0277445UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS
Technical Data | NSN 5306-00-377-5606
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.350 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
FASTENER LENGTH0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
HEAD STYLE0 HEXAGON
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.264 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.313 INCHES NOMINAL
EXTENDED WASHER DIAMETER0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.032 INCHES MINIMUM
HOLE CONFIGURATION STYLE DOUBLE HEXAGON LONGITUDINAL HOLE
HOLE TYPE DRILLED
HOLE QUANTITY4
HOLE DIAMETER0.055 INCHES NOMINAL
GRIP LENGTH0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM