NSN 5306-01-454-0493

Part Details | SHEAR BOLT

5306-01-454-0493 A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.

Alternate Parts: MS2125020040, MS21250-20040, 5306-01-454-0493, 01-454-0493, 5306014540493, 014540493

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 18, 199801-454-049315903 ( BOLT, SHEAR )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON EXTENDED WASHER

Cross Reference | NSN 5306-01-454-0493
Part Number Cage Code Manufacturer
MS21250-2004096906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5306-01-454-0493
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER1.2500 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.760 INCHES NOMINAL
FASTENER LENGTH4.280 INCHES NOMINAL
MINIMUM TENSILE STRENGTH202000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON EXTENDED WASHER
HEAD HEIGHT1.155 INCHES NOMINAL
WIDTH BETWEEN FLATS1.3125 INCHES NOMINAL
EXTENDED WASHER DIAMETER2.115 INCHES MINIMUM AND 2.125 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.269 INCHES NOMINAL
GRIP LENGTH2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM
GRIP DIAMETER1.2475 INCHES MINIMUM AND 1.2490 INCHES MAXIMUM