5306-01-102-2688, BOLT,SHEAR

National Stock Number:
5306-01-102-2688

Federal Supply Class:
5306

National Item Identification Number:
011022688

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:

AIC260E-4-34	06725	SPS TECHNOLOGIES, LLC
C305-4-34	27624	SPS TECHNOLOGIES LLC
C305-4-34	56878	SPS TECHNOLOGIES, LLC
C305-4-34	81755	LOCKHEED MARTIN CORPORATION
C305-4-34	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
C305-4-34	A0126	LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE
VS2005-4-34	06950	HOWMET GLOBAL FASTENING SYSTEMS INC
EWB26-4-34	56878	SPS TECHNOLOGIES, LLC
EWB26-4-34	80539	SPS TECHNOLOGIES, LLC
VS2005-4-34	92215	HOWMET GLOBAL FASTENING SYSTEMS INC

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	2.641 INCHES MINIMUM AND 2.671 INCHES MAXIMUM
GRIP DIAMETER	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH	2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM
HARDNESS RATING	51.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.244 INCHES MINIMUM AND 0.264 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH	260000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
WIDTH BETWEEN FLATS	0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-8837 TYPE 2 CL 3 MIL SPEC 1ST TREATMENT RESPONSE OR AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OR NICKEL AND CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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