NSN 5306-01-188-9631

Part Details | CLOSE TOLERANCE BOLT

5306-01-188-9631 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: MS949408, MS9494-08, MS949408, MS9494-08, AS9494, 5306-01-188-9631, 01-188-9631, 5306011889631, 011889631

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 10, 198401-188-963127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-188-9631
Part Number Cage Code Manufacturer
MS9494-0896906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
MS9494-0881343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS949481343SOCIETY OF AUTOMOTIVE ENGINEERS INC
Technical Data | NSN 5306-01-188-9631
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.947 INCHES NOMINAL
FASTENER LENGTH1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
GRIP LENGTH0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
GRIP DIAMETER0.4950 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM