5306-00-083-5218, BOLT,SHEAR

National Stock Number:
5306-00-083-5218

Federal Supply Class:
5306

National Item Identification Number:
000835218

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:

C699-7-25	81755	LOCKHEED MARTIN CORPORATION
EWSB22-7-25	50392	SPS TECHNOLOGIES INC
EWSB22-7-25	56878	SPS TECHNOLOGIES, LLC
VS2521-7F-21S	92215	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.887 INCHES MINIMUM AND 1.919 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	2.012 INCHES MINIMUM AND 2.059 INCHES MAXIMUM
GRIP DIAMETER	0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM
GRIP LENGTH	1.552 INCHES MINIMUM AND 1.572 INCHES MAXIMUM
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.257 INCHES NOMINAL
HEAD STYLE	DOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	NAS-M-107,50392 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.438 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.106 INCHES NOMINAL FIRST HOLE
SINGLE SHEAR STRENGTH	132000 POUNDS PER SQUARE INCH
WIDTH BETWEEN FLATS	0.678 INCHES MINIMUM AND 0.689 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	0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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