NSN 5306-01-351-3394

Part Details | CLOSE TOLERANCE BOLT

5306-01-351-3394 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: MS21297H05014, 5306-01-351-3394, 01-351-3394, 5306013513394, 013513394

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 06, 199201-351-339427851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-351-3394
Part Number Cage Code Manufacturer
MS21297H0501496906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5306-01-351-3394
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.313 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.495 INCHES MINIMUM AND 0.589 INCHES MAXIMUM
FASTENER LENGTH1.527 INCHES MINIMUM AND 1.557 INCHES MAXIMUM
HEAD STYLE1 HEXAGON
HEAD HEIGHT0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM
HEAD MINOR DIAMETER0.360 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
GRIP LENGTH0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM
GRIP DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
END ITEM IDENTIFICATIONPACER DAWN