NSN 5306-01-334-7911

Part Details | CLOSE TOLERANCE BOLT

5306-01-334-7911 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: MS2129709028, MS21297-09028, 5306-01-334-7911, 01-334-7911, 5306013347911, 013347911

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 28, 199101-334-791127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-334-7911
Part Number Cage Code Manufacturer
MS21297-0902896906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5306-01-334-7911
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.5625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.940 INCHES NOMINAL
FASTENER LENGTH2.685 INCHES MINIMUM AND 2.715 INCHES MAXIMUM
HEAD STYLE1 HEXAGON
HEAD HEIGHT0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
EXTENDED WASHER DIAMETER1.042 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.071 INCHES MINIMUM AND 0.091 INCHES MAXIMUM
HEAD MINOR DIAMETER0.610 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
GRIP LENGTH1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM
GRIP DIAMETER0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM
SPECIAL FEATURESHOLE DRILLED IN TOP CENTER OF HEAD,0.410/0.450 IN. DIA X 0.164 IN. NOMDEEP
END ITEM IDENTIFICATIONPACER DAWN