NSN 5306-01-300-3311

Part Details | CLOSE TOLERANCE BOLT

5306-01-300-3311 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: NAS6305L6, NAS6305L6, NAS6305L6, NAS6305L6, NAS6305L6, NAS6305L6, 5306-01-300-3311, 01-300-3311, 5306013003311, 013003311

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 12, 198901-300-331127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

Cross Reference | NSN 5306-01-300-3311
Part Number Cage Code Manufacturer
NAS6305L660996AERO FASTENER CO., INC.
NAS6305L64A766AERO HARDWARE & PARTS CO., INC.
NAS6305L63P226FISHER - FAIRCHILD CORPORATION
NAS6305L62K255GOLDINGER, BERNARDDBA CONAIR AVIATION ASSOCIATES
NAS6305L681755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
NAS6305L664752S P I INC
Technical Data | NSN 5306-01-300-3311
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.438 INCHES NOMINAL
FASTENER LENGTH1.251 INCHES NOMINAL
HEAD STYLE DISHED HEXAGON
HEAD HEIGHT0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.497 INCHES NOMINAL
GRIP LENGTH0.803 INCHES MINIMUM AND 0.823 INCHES MAXIMUM
GRIP DIAMETER0.312 INCHES NOMINAL
SPECIAL FEATURESLOCKING ELEMENT IS PLASTIC PER MIL-F-18240 AND QPL18240;BOLT MARKED WITH GREEN DYE OR PAINT ON THE THREAD END