NSN 5306-01-334-7910

Part Details | CLOSE TOLERANCE BOLT

5306-01-334-7910 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: MS2129708037, MS21297-08037, 5306-01-334-7910, 01-334-7910, 5306013347910, 013347910

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 28, 199101-334-791027851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-334-7910
Part Number Cage Code Manufacturer
MS21297-0803796906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5306-01-334-7910
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.5000 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.842 INCHES NOMINAL
FASTENER LENGTH3.151 INCHES MINIMUM AND 3.181 INCHES MAXIMUM
HEAD STYLE1 HEXAGON
HEAD HEIGHT0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.927 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
HEAD MINOR DIAMETER0.547 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
GRIP LENGTH2.302 INCHES MINIMUM AND 2.322 INCHES MAXIMUM
GRIP DIAMETER0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM
SPECIAL FEATURESHOLE DRILLED IN TOP CENTER OF HEAD,0.350/0.390 IN. DIA X 0.146 IN. NOMDEEP
END ITEM IDENTIFICATIONPACER DAWN