5306-01-203-9341, BOLT,SHEAR

National Stock Number:
5306-01-203-9341

Federal Supply Class:
5306

National Item Identification Number:
012039341

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:

NAS1785-4-4

80205

NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

EXTENDED WASHER DIAMETER	0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.032 INCHES MINIMUM AND 0.052 INCHES MAXIMUM
FASTENER LENGTH	0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
GRIP LENGTH	0.250 INCHES NOMINAL
GRIP DIAMETER	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.244 INCHES MINIMUM AND 0.264 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH	220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SPECIFICATION/STANDARD DATA	80205-NAS1785 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WIDTH BETWEEN FLATS	0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.429 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNJF

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