NSN 5306-00-406-0512

Part Details | CLOSE TOLERANCE BOLT

5306-00-406-0512 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: 7234645, 72346-4-5, 7234645, 72346-4-5, AIC1615W45, AIC1615W-4-5, 5306-00-406-0512, 00-406-0512, 5306004060512, 004060512

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 16, 197100-406-051227851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-406-0512
Part Number Cage Code Manufacturer
72346-4-556878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
72346-4-580539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AIC1615W-4-506725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
Technical Data | NSN 5306-00-406-0512
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
FASTENER LENGTH0.782 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON
HEAD HEIGHT0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
GRIP LENGTH0.312 INCHES NOMINAL
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SPECIAL FEATURESALL THD ELEMENT DIAMETERS REDUCED 0.003 IN.