NSN 5306-00-159-2661

Part Details | CLOSE TOLERANCE BOLT

5306-00-159-2661 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: STSBG001A05U020, 11701A05U020, STSBG001A05U020, 684855A020, 68485-5A020, STSBG001A05U020, 684855A020, 68485-5A020, STSBG001A05U020, STSBG001A05U020, 5306-00-159-2661, 00-159-2661, 5306001592661, 001592661

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 24, 197100-159-266127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-00-159-2661
Part Number Cage Code Manufacturer
STSBG001A05U02098897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
11701A05U02059563REID PRODUCTS INC.DBA REID PRODUCTS
STSBG001A05U02057928SONIC INDUSTRIES INC.
68485-5A02056878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
STSBG001A05U02056878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
68485-5A02080539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
STSBG001A05U02006725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
STSBG001A05U02027624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5306-00-159-2661
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.343 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
FASTENER LENGTH1.593 INCHES MINIMUM AND 1.640 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH156000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.187 INCHES NOMINAL
WIDTH BETWEEN FLATS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
GRIP LENGTH1.250 INCHES NOMINAL
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM