5306-01-167-2404, BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-167-2404

Federal Supply Class:
5306

National Item Identification Number:
011672404

Description:
BOLT,CLOSE TOLERANCE

Detail:
An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.

Manufacturer Information:

121491-16-48

80539

SPS TECHNOLOGIES, LLC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	4.051 INCHES MINIMUM AND 4.097 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	4.208 INCHES MINIMUM AND 4.244 INCHES MAXIMUM
GRIP DIAMETER	0.9982 INCHES MINIMUM AND 0.9991 INCHES MAXIMUM
GRIP LENGTH	2.976 INCHES MINIMUM AND 2.992 INCHES MAXIMUM
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.501 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
HEAD STYLE	HEXAGON
LOCKING FEATURE	DETENT RING GRIP
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP E4340 OVERALL
MINIMUM TENSILE STRENGTH	74000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	1.000 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS	1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.885 INCHES MINIMUM AND 1.196 INCHES MAXIMUM
THREAD QUANTITY PER INCH	12
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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