NSN 5306-01-194-4988

Part Details | CLOSE TOLERANCE BOLT

5306-01-194-4988 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: L3400057005, L3400057-005, 5306-01-194-4988, 01-194-4988, 5306011944988, 011944988

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 14, 198401-194-498827851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

HEXAGON CORNERS

Cross Reference | NSN 5306-01-194-4988
Part Number Cage Code Manufacturer
L3400057-00543999BOEING COMPANY, THEDBA BOEING
Technical Data | NSN 5306-01-194-4988
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
FASTENER LENGTH1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
HOLE CONFIGURATION STYLE HEXAGON CORNERS
HOLE TYPE DRILLED
HOLE QUANTITY2
HOLE DIAMETER0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
GRIP LENGTH0.543 INCHES MINIMUM AND 0.583 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM