5306-01-608-2623, BOLT,SHEAR

National Stock Number:
5306-01-608-2623

Federal Supply Class:
5306

National Item Identification Number:
016082623

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:

MS21250-09023	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
MS21250-09023	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
NASM21250-09023	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.562 INCHES
THREAD QUANTITY PER INCH	18
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.852 INCHES NOMINAL
FASTENER LENGTH	2.289 INCHES NOMINAL
MATERIAL	STEEL COMP 4140 OR
	STEEL COMP 4340 OR
	STEEL COMP 8740 OR
	STEEL COMP 6150 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OR
	MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OR
	MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OR
	MIL-S-8503 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND
	43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	39200 POUNDS PER SQUARE INCH
HEAD STYLE	DOUBLE HEXAGON W/HOLE
HEAD HEIGHT	0.557 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.625 INCHES NOMINAL
EXTENDED WASHER DIAMETER	0.928 INCHES MINIMUM AND
	0.938 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.610 INCHES MINIMUM AND
	0.625 INCHES MAXIMUM
GRIP LENGTH	1.437 INCHES NOMINAL
GRIP DIAMETER	0.5605 INCHES MINIMUM AND
	0.5615 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
	32.0 MICROINCHES GRIP
SPECIAL FEATURES	DOUBLE SHEAR STRENGTH AT 53700 LBS
PART NAME ASSIGNED BY CONTROLLING AGENCY	BOLT,TENSION,STEEL,EXTERNAL WRENCHING,FLANGED,12-POINT
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS21250-09023

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