5306-01-030-2266, BOLT,SHEAR

National Stock Number:
5306-01-030-2266

Federal Supply Class:
5306

National Item Identification Number:
010302266

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:

AIC220-5-70	06725	SPS TECHNOLOGIES, LLC
C699-5-70	56878	SPS TECHNOLOGIES, LLC
C699-5-70	81755	LOCKHEED MARTIN CORPORATION
EWSB22-5-70	56878	SPS TECHNOLOGIES, LLC
EWSB22-5-70	80539	SPS TECHNOLOGIES, LLC
VS2521-5F-70S	06950	HOWMET GLOBAL FASTENING SYSTEMS INC
VS2521-5F-70S	92215	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	4.591 INCHES MINIMUM AND 4.623 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	4.710 INCHES MINIMUM AND 4.757 INCHES MAXIMUM
GRIP DIAMETER	0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM
GRIP LENGTH	4.365 INCHES MINIMUM AND 4.385 INCHES MAXIMUM
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	SPS-M-107 FSCM 56878 MFR REF ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP H11 OR STEEL OVERALL
MINIMUM TENSILE STRENGTH	220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE
SPECIFICATION/STANDARD DATA	56878-EWSB22 MANUFACTURERS STANDARD
WIDTH BETWEEN FLATS	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.325 INCHES MINIMUM AND 0.392 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNJF
THREAD QUANTITY PER INCH	24

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