NSN 5306-00-003-9389

Part Details | CLOSE TOLERANCE BOLT


5306-00-003-9389 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: NAS674V48H, 5306-00-003-9389, 00-003-9389, 5306000039389, 000039389

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 27, 197200-003-938927851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

HEXAGON CORNERS


Cross Reference | NSN 5306-00-003-9389
Part Number Cage Code Manufacturer
NAS674V48H80205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES

Technical Data | NSN 5306-00-003-9389
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
FASTENER LENGTH3.410 INCHES MINIMUM AND 3.440 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
HOLE CONFIGURATION STYLE HEXAGON CORNERS
HOLE TYPE DRILLED
HOLE QUANTITY3
HOLE DIAMETER0.046 INCHES NOMINAL
GRIP LENGTH2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA80205-NAS674 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD