NSN 5306-01-272-8324

Part Details | CLOSE TOLERANCE BOLT

5306-01-272-8324 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: VS31914D18, VS3191-4D18, VS31914D18, VS3191-4D18, ST3M7474D18, ST3M747-4D18, ST3M7474D18, ST3M747-4D18, MB1554D18, MB155-4D18, S3974D18, S397-4D18, S3974D18, S397-4D18, MB1554D18, MB155-4D18, 1228964D18, 122896-4D18, AIC6884D18, AIC688-4D18, PBF 12664D18, PBF 1266-4D18, VCG00024D18, VCG0002-4D18, 5306-01-272-8324, 01-272-8324, 5306012728324, 012728324

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 15, 198801-272-832427851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-272-8324
Part Number Cage Code Manufacturer
VS3191-4D1892215ARCONIC GLOBAL FASTENERS & RINGS,INC.
VS3191-4D1806950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M747-4D1892215ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M747-4D1876301BOEING COMPANY, THEDBA BOEING
MB155-4D1873197HI-SHEAR CORPORATION
S397-4D1817446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
S397-4D1897928HUCK INTL INC
MB155-4D18L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
122896-4D1880539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AIC688-4D1806725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF 1266-4D1827624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
VCG0002-4D1806710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-01-272-8324
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.300 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
FASTENER LENGTH1.506 INCHES MINIMUM AND 1.553 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLE2 HEXAGON
HEAD HEIGHT0.164 INCHES NOMINAL
HEAD MINOR DIAMETER0.448 INCHES MINIMUM AND 0.455 INCHES MAXIMUM
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM