NSN 5306-01-228-6799

Part Details | CLOSE TOLERANCE BOLT

5306-01-228-6799 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: MS27576817, MS27576-8-17, MS27576817, MS27576-8-17, 106467817, 106467-8-17, 5306-01-228-6799, 01-228-6799, 5306012286799, 012286799

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 20, 198601-228-679927851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

Cross Reference | NSN 5306-01-228-6799
Part Number Cage Code Manufacturer
MS27576-8-1796906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
MS27576-8-1780205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
106467-8-1780539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5306-01-228-6799
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.646 INCHES MINIMUM AND 0.650 INCHES MAXIMUM
FASTENER LENGTH1.708 INCHES MINIMUM AND 1.728 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH95000 POUNDS PER SQUARE INCH
HEAD STYLE DISHED HEXAGON
HEAD HEIGHT0.251 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.840 INCHES MINIMUM
GRIP LENGTH1.062 INCHES MINIMUM AND 1.078 INCHES MAXIMUM
GRIP DIAMETER0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM
SPECIAL FEATURESRETAINING ELEMENT IN SHANK
SPECIFICATION/STANDARD DATA96906-MS27576-8-17 GOVERNMENT STANDARD