NSN 5306-01-291-5688

Part Details | CLOSE TOLERANCE BOLT

5306-01-291-5688 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: VS34611, VS3461-1, C97721, C9772-1, AIC44321, AIC4432-1, 5306-01-291-5688, 01-291-5688, 5306012915688, 012915688

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 30, 198801-291-568827851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-291-5688
Part Number Cage Code Manufacturer
VS3461-192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
C9772-181755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
AIC4432-106725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
Technical Data | NSN 5306-01-291-5688
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.150 INCHES NOMINAL
FASTENER LENGTH2.300 INCHES MINIMUM AND 2.330 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
HEAD STYLE1 HEXAGON
HEAD HEIGHT0.502 INCHES NOMINAL
EXTENDED WASHER DIAMETER1.400 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.098 INCHES NOMINAL
HEAD MINOR DIAMETER0.774 INCHES MINIMUM AND 0.782 INCHES MAXIMUM
GRIP LENGTH1.165 INCHES NOMINAL
GRIP DIAMETER0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM