NSN 5306-00-486-1798

Part Details | CLOSE TOLERANCE BOLT

5306-00-486-1798 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: A51M1254811, A51M12548-11, A51M1254811, A51M12548-11, A51M1254811, A51M12548-11, 5306-00-486-1798, 00-486-1798, 5306004861798, 004861798

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 17, 197200-486-179827851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5306-00-486-1798
Part Number Cage Code Manufacturer
A51M12548-1126512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
A51M12548-1161174NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
A51M12548-1105722S&L AEROSPACE METALS, LLC
Technical Data | NSN 5306-00-486-1798
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.437 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.531 INCHES MINIMUM
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
HEAD DIAMETER0.750 INCHES NOMINAL
HEAD HEIGHT0.188 INCHES NOMINAL
WIDTH BETWEEN FLATS0.615 INCHES NOMINAL
GRIP LENGTH0.907 INCHES NOMINAL
TEST DATA DOCUMENT81349-MIL-I-6868 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT