NSN 5306-00-518-5116

Part Details | CLOSE TOLERANCE BOLT

5306-00-518-5116 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: MB134D18, MB13-4D18, ST3M5614D18, ST3M561-4D18, ST3M5614D18, ST3M561-4D18, MB134D18, MB13-4D18, BM17028418, BM17028-4-18, BM17028418, BM17028-4-18, MB134D18, MB13-4D18, MB134D18, MB13-4D18, 739924D18, 73992-4D18, A1C2444D18, A1C244-4D18, A1C244418, A1C244-4-18, AIC2444D18, AIC244-4D18, PBF1225418D, PBF1225-4-18D, 5306-00-518-5116, 00-518-5116, 5306005185116, 005185116

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 13, 197400-518-511627851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-00-518-5116
Part Number Cage Code Manufacturer
MB13-4D18C4293ALCOA FASTENING SYSTEMSFAIRCHILDFASTENERS EUROPE - VSD GMBH
ST3M561-4D1892215ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M561-4D1876301BOEING COMPANY, THEDBA BOEING
MB13-4D1873197HI-SHEAR CORPORATION
BM17028-4-1817446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM17028-4-1897928HUCK INTL INC
MB13-4D18L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
MB13-4D18R1120SATAIR A/S
73992-4D1856878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
A1C244-4D1806725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
A1C244-4-1806725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
AIC244-4D1806725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1225-4-18D27624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5306-00-518-5116
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.267 INCHES MINIMUM AND 0.334 INCHES MAXIMUM
FASTENER LENGTH1.402 INCHES MINIMUM AND 1.449 INCHES MAXIMUM
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
END ITEM IDENTIFICATIONAIRCRAFT, PHANTOM F-4