5306-00-086-7385, BOLT,CLOSE TOLERANCE

National Stock Number:
5306-00-086-7385

Federal Supply Class:
5306

National Item Identification Number:
000867385

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:

NAS673V23D

80205

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

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.608 INCHES MINIMUM AND 1.618 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	1.761 INCHES MINIMUM AND 1.791 INCHES MAXIMUM
GRIP DIAMETER	0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH	1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM
HEAD HEIGHT	0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	AS 621 COMP 6AL-4 FED SPEC 11TH MATERIAL RESPONSE OR MS 4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	TITANIUM ALLOY UNS R54520 OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE
SPECIFICATION/STANDARD DATA	80205-NAS673 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WIDTH BETWEEN FLATS	0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
SURFACE FINISH	16.0 MICROINCHES THREADS
SURFACE FINISH	16.0 MICROINCHES TOP OF HEAD
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	63.0 MICROINCHES GRIP
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNF

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