NSN 5306-00-003-6555

Part Details | CLOSE TOLERANCE BOLT

5306-00-003-6555 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: A51H1063411, A51H10634-11, A51H1063411, A51H10634-11, 5306-00-003-6555, 00-003-6555, 5306000036555, 000036555

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 27, 197200-003-655527851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-003-6555
Part Number Cage Code Manufacturer
A51H10634-1126512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
A51H10634-1161174NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
Technical Data | NSN 5306-00-003-6555
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.848 INCHES MINIMUM AND 0.898 INCHES MAXIMUM
FASTENER LENGTH2.233 INCHES MINIMUM AND 2.263 INCHES MAXIMUM
HEAD STYLE0 HEXAGON
HEAD HEIGHT0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.682 INCHES MINIMUM AND 0.691 INCHES MAXIMUM
EXTENDED WASHER DIAMETER1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
GRIP LENGTH1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM
GRIP DIAMETER0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM