NSN 5306-00-051-6874
Part Details | CLOSE TOLERANCE BOLT
5306-00-051-6874 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: AN17622, AN176-22, 5306-00-051-6874, 00-051-6874, 5306000516874, 000516874
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | MAY 18, 1967 | 00-051-6874 | 27851 ( BOLT, CLOSE TOLERANCE ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5306-00-051-6874
Part Number | Cage Code | Manufacturer |
---|---|---|
AN176-22 | 88044 | AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE |
Technical Data | NSN 5306-00-051-6874
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 1.641 INCHES MINIMUM |
FASTENER LENGTH | 2.328 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
GRIP LENGTH | 1.687 INCHES NOMINAL |
GRIP DIAMETER | 0.3742 INCHES MINIMUM AND 0.3787 INCHES MAXIMUM |