NSN 5306-01-201-2240

Part Details | CLOSE TOLERANCE BOLT

5306-01-201-2240 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: BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, BACB30LJ4U13, 5306-01-201-2240, 01-201-2240, 5306012012240, 012012240

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 14, 198501-201-224027851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

UNDERCUT HEXAGON

Cross Reference | NSN 5306-01-201-2240
Part Number Cage Code Manufacturer
BACB30LJ4U1392215ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30LJ4U1306950ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30LJ4U1317943FEDERAL MANUFACTURING CORPORATION
BACB30LJ4U1317446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BACB30LJ4U1397928HUCK INTL INC
BACB30LJ4U1380539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
BACB30LJ4U1306725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
BACB30LJ4U1327624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
BACB30LJ4U1381205THE BOEING COMPANYDBA BOEING
BACB30LJ4U1306710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-01-201-2240
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.364 INCHES MINIMUM AND 0.414 INCHES MAXIMUM
FASTENER LENGTH1.186 INCHES MINIMUM AND 1.216 INCHES MAXIMUM
HEAD STYLE UNDERCUT HEXAGON
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2496 INCHES MAXIMUM
END ITEM IDENTIFICATIONBAF; BTF; 05F; 04F; 25F