NSN 5306-00-136-2875

Part Details | CLOSE TOLERANCE BOLT

5306-00-136-2875 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: VS2521F711, VS2521F7-11, VS2521F711, VS2521F7-11, GB511B711, GB511B7-11, 5306-00-136-2875, 00-136-2875, 5306001362875, 001362875

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 24, 196900-136-287527851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

DOUBLE HEXAGON FLATS

Cross Reference | NSN 5306-00-136-2875
Part Number Cage Code Manufacturer
VS2521F7-1106950ARCONIC GLOBAL FASTENERS & RINGS,INC.
VS2521F7-1192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
GB511B7-1126512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
Technical Data | NSN 5306-00-136-2875
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.441 INCHES MINIMUM AND 0.491 INCHES MAXIMUM
FASTENER LENGTH1.139 INCHES MINIMUM AND 1.169 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH132000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
HOLE CONFIGURATION STYLE DOUBLE HEXAGON FLATS
HOLE TYPE DRILLED
HOLE QUANTITY2
HOLE DIAMETER0.070 INCHES NOMINAL
GRIP LENGTH0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
GRIP DIAMETER0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM