NSN 5306-01-344-4324

Part Details | CLOSE TOLERANCE BOLT

5306-01-344-4324 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: GB511GG415A, GB511GG4-15A, GB511GG415A, GB511GG4-15A, 92147415A, 92147-4-15A, GB511GG415A, GB511GG4-15A, PBF1479415A, PBF1479-4-15A, VCD0020415A, VCD0020-4-15A, 5306-01-344-4324, 01-344-4324, 5306013444324, 013444324

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 29, 199101-344-432427851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-01-344-4324
Part Number Cage Code Manufacturer
GB511GG4-15A73197HI-SHEAR CORPORATION
GB511GG4-15A26512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
92147-4-15A56878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
GB511GG4-15A06725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1479-4-15A27624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
VCD0020-4-15A06710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-01-344-4324
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.377 INCHES NOMINAL
FASTENER LENGTH1.236 INCHES MINIMUM AND 1.283 INCHES MAXIMUM
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
GRIP DIAMETER0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM