NSN 5306-00-492-2971

Part Details | CLOSE TOLERANCE BOLT

5306-00-492-2971 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.

Alternate Parts: NAS126424D, NAS1264-24D, 5306-00-492-2971, 00-492-2971, 5306004922971, 004922971

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUL 02, 197400-492-297127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-492-2971
Part Number Cage Code Manufacturer
NAS1264-24D80205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5306-00-492-2971
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.875 INCHES
THREAD QUANTITY PER INCH14
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.627 INCHES MINIMUM AND 0.677 INCHES MAXIMUM
FASTENER LENGTH2.137 INCHES MINIMUM AND 2.167 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM
GRIP LENGTH1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
GRIP DIAMETER0.8735 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA80205-NAS1264 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD