NSN 5306-01-334-7909

Part Details | CLOSE TOLERANCE BOLT

5306-01-334-7909 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: MS21296H06028, MS21296H06028, 5306-01-334-7909, 01-334-7909, 5306013347909, 013347909

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 28, 199101-334-790927851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

DOUBLE HEXAGON FLATS

Cross Reference | NSN 5306-01-334-7909
Part Number Cage Code Manufacturer
MS21296H0602896906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
MS21296H0602880205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5306-01-334-7909
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.3750 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.725 INCHES NOMINAL
FASTENER LENGTH2.469 INCHES MINIMUM AND 2.499 INCHES MAXIMUM
HEAD STYLE1 HEXAGON
HEAD HEIGHT0.327 INCHES MINIMUM AND 0.347 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.696 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.044 INCHES MINIMUM AND 0.064 INCHES MAXIMUM
HEAD MINOR DIAMETER0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
HOLE CONFIGURATION STYLE8 DOUBLE HEXAGON FLATS
HOLE TYPE DRILLED
HOLE QUANTITY4
HOLE DIAMETER0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
GRIP LENGTH1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM
GRIP DIAMETER0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
SPECIAL FEATURESHOLE DRILLED IN TOP CENTER OF HEAD,0.230/0.270 IN. DIA X 0.110 IN. NOMDEEP
END ITEM IDENTIFICATIONPACER DAWN