5306-00-144-0393, BOLT,SHEAR

National Stock Number:
5306-00-144-0393

Federal Supply Class:
5306

National Item Identification Number:
001440393

Description:
BOLT,SHEAR

Detail:
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.

Manufacturer Information:

10930585

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

EXTENDED WASHER DIAMETER	0.715 INCHES MINIMUM AND 0.725 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.075 INCHES NOMINAL
FASTENER LENGTH	1.375 INCHES MINIMUM AND 1.406 INCHES MAXIMUM
GRIP DIAMETER	0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH	0.346 INCHES NOMINAL
HARDNESS RATING	51.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.405 INCHES NOMINAL
HEAD STYLE	DOUBLE HEXAGON W/HOLE
LOCKING FEATURE	STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE BEARING SURFACE OF HEAD
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE
MATERIAL	PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING FEATURE
MATERIAL	STEEL COMP H11 FASTENER
MINIMUM TENSILE STRENGTH	260000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	215000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
SPECIAL FEATURES	ROLL THREADS
WIDTH BETWEEN FLATS	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-8837, TYPE 1, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	CADMIUM FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.935 INCHES MINIMUM AND 1.060 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNJC
THREAD QUANTITY PER INCH	16

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