NSN 5306-01-335-2908

Part Details | CLOSE TOLERANCE BOLT

5306-01-335-2908 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: MS21297H08019, 5306-01-335-2908, 01-335-2908, 5306013352908, 013352908

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 07, 199101-335-290827851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

DOUBLE HEXAGON FLATS

Cross Reference | NSN 5306-01-335-2908
Part Number Cage Code Manufacturer
MS21297H0801996906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5306-01-335-2908
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.5000 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.844 INCHES NOMINAL
FASTENER LENGTH2.025 INCHES MINIMUM AND 2.055 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
HOLE CONFIGURATION STYLE8 DOUBLE HEXAGON FLATS
HOLE TYPE DRILLED
HOLE QUANTITY4
HOLE DIAMETER0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
GRIP LENGTH1.178 INCHES MINIMUM AND 1.198 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 0.144 IN. NOMDEEP
END ITEM IDENTIFICATIONPACER DAWN