NSN 5306-01-159-7583

Part Details | CLOSE TOLERANCE BOLT

5306-01-159-7583 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: RA210311, RA21031-1, RA210311, RA21031-1, 5306-01-159-7583, 01-159-7583, 5306011597583, 011597583

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 13, 198301-159-758327851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

HEXAGON FLATS

Cross Reference | NSN 5306-01-159-7583
Part Number Cage Code Manufacturer
RA21031-117446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
RA21031-197928HUCK INTL INC
Technical Data | NSN 5306-01-159-7583
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.375 INCHES NOMINAL
FASTENER LENGTH3.500 INCHES NOMINAL
HEAD STYLE0 HEXAGON
HEAD HEIGHT0.312 INCHES NOMINAL
WIDTH BETWEEN FLATS0.406 INCHES NOMINAL
EXTENDED WASHER DIAMETER0.593 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.062 INCHES NOMINAL
HOLE CONFIGURATION STYLE HEXAGON FLATS
HOLE TYPE DRILLED
HOLE QUANTITY4
HOLE DIAMETER0.062 INCHES NOMINAL
GRIP LENGTH3.062 INCHES NOMINAL
GRIP DIAMETER0.2812 INCHES NOMINAL