NSN 5306-01-585-8886

Part Details | CLOSE TOLERANCE BOLT

5306-01-585-8886 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: NAS4404D20, 5306-01-585-8886, 01-585-8886, 5306015858886, 015858886

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 10, 201001-585-888627851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

FLAT

ROUND

Cross Reference | NSN 5306-01-585-8886
Part Number Cage Code Manufacturer
NAS4404D2080205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5306-01-585-8886
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.370 INCHES NOMINAL
FASTENER LENGTH1.620 INCHES NOMINAL
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.501 INCHES NOMINAL
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
HOLE CONFIGURATION STYLE ROUND
HOLE TYPE DRILLED
HOLE QUANTITY1
HOLE DIAMETER0.076 INCHES NOMINAL
GRIP LENGTH1.250 INCHES NOMINAL
GRIP DIAMETER0.2481 INCHES MINIMUM AND 0.2487 INCHES MAXIMUM
POINT STYLE9 FLAT
POINT DIAMETER0.241 INCHES MINIMUM AND 0.244 INCHES MAXIMUM