5306-01-277-6890, BOLT,SHEAR

National Stock Number:
5306-01-277-6890

Federal Supply Class:
5306

National Item Identification Number:
012776890

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:

HS4441-8H-9	02731	MCDONNELL DOUGLAS HELICOPTER CO INC
HS4441-8H-9	0HBF7	BLANC AIRCRAFT FASTENERS INC
HS4441-8H-9	4GP55	ACUFAST AIRCRAFT PRODUCTS
HS4441-8H-9	56878	SPS TECHNOLOGIES, LLC
HS4441-8H-9	70974	NORTHROP GRUMMAN SYSTEMS CORPORATION
HS4441-8H-9	8V613	THE BOEING COMPANY
LWB22-8H-9	56878	SPS TECHNOLOGIES, LLC
LM-211-102	76005	LORD CORPORATION

Techincal Specification:

EXTENDED WASHER DIAMETER	0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM
FASTENER LENGTH	1.313 INCHES MINIMUM AND 1.343 INCHES MAXIMUM
GRIP LENGTH	0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
GRIP DIAMETER	0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
HOLE CONFIGURATION STYLE	DOUBLE HEXAGON LONGITUDINAL HOLE
HOLE DIAMETER	0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
HOLE QUANTITY	4
HOLE TYPE	DRILLED
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	0.500 INCHES
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.741 INCHES MINIMUM AND 0.791 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	20
WIDTH BETWEEN FLATS	0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM

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