NSN 5306-01-177-9731

Part Details | CLOSE TOLERANCE BOLT

5306-01-177-9731 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: 104779627, 104779627, 104779627, 104779627, 5306-01-177-9731, 01-177-9731, 5306011779731, 011779731

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 30, 198401-177-973127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

HEXAGON LONGITUDINAL HOLE

Cross Reference | NSN 5306-01-177-9731
Part Number Cage Code Manufacturer
104779627058R3GE AVIATION SYSTEMS LLCDIV CUSTOMER SERVICES
104779627K5294GE AVIATION SYSTEMS LTD
104779627K0654SAFRAN LANDING SYSTEMS UK LTDDBA OA
104779627U7388TRIUMPH ACTUATION SYSTEMS - UK, LTD.DBA TRIUMPH ACTUATION SYSTEMS - UK &
Technical Data | NSN 5306-01-177-9731
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM
FASTENER LENGTH0.800 INCHES NOMINAL
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 LONGITUDINAL HOLE
HOLE TYPE DRILLED
HOLE QUANTITY4
HOLE DIAMETER1.05 MILLIMETERS MINIMUM AND 1.18 MILLIMETERS MAXIMUM
GRIP LENGTH0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM