NSN 5306-01-623-9629

Part Details | CLOSE TOLERANCE BOLT

5306-01-623-9629 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: LD11100260410, LD111-0026-0410, 5306-01-623-9629, 01-623-9629, 5306016239629, 016239629

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 10, 201301-623-962927851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-01-623-9629
Part Number Cage Code Manufacturer
LD111-0026-041043999BOEING COMPANY, THEDBA BOEING
Technical Data | NSN 5306-01-623-9629
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.397 INCHES NOMINAL
FASTENER LENGTH1.007 INCHES MINIMUM AND 1.037 INCHES MAXIMUM
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.164 INCHES NOMINAL
WIDTH BETWEEN FLATS0.491 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
GRIP LENGTH0.625 INCHES NOMINAL
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
END ITEM IDENTIFICATIONB1-BACFT
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,SHEAR