NSN 5306-00-003-0644

Part Details | CLOSE TOLERANCE BOLT

5306-00-003-0644 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: CA4510526, CA4510-5-26, AS194526, AS194-5-26, CIPRDMS27576526R, CIPRD-MS27576-5-26R, MS27576526, MS27576-5-26, MS27576526, MS27576-5-26, 106467526, 106467-5-26, 5306-00-003-0644, 00-003-0644, 5306000030644, 000030644

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 11, 197200-003-064427851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

Cross Reference | NSN 5306-00-003-0644
Part Number Cage Code Manufacturer
CA4510-5-2629372ARCONIC GLOBAL FASTENERS & RINGS,INC.
AS194-5-2684256AVIBANK MFG., INC.
CIPRD-MS27576-5-26R14153DEFENSE LOGISTICS AGENCYDBA DEFENSE SUPPLY CENTER
MS27576-5-2696906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
MS27576-5-2680205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
106467-5-2680539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5306-00-003-0644
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.311 INCHES MINIMUM AND 0.378 INCHES MAXIMUM
FASTENER LENGTH2.103 INCHES MINIMUM AND 2.123 INCHES MAXIMUM
HEAD STYLE DISHED HEXAGON
HEAD HEIGHT0.157 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
GRIP LENGTH1.625 INCHES MINIMUM AND 1.641 INCHES MAXIMUM
GRIP DIAMETER0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM
SPECIAL FEATURESDETENT RING IN SHANK