NSN 5306-00-138-6375

Part Details | SHEAR BOLT

5306-00-138-6375 A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.

Alternate Parts: C4550410, C4550-4-10, EWSB9264A10, EWSB926-4A10, EWSB9264A10, EWSB926-4A10, AIC4550410, AIC4550-4-10, 5306-00-138-6375, 00-138-6375, 5306001386375, 001386375

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 09, 197100-138-637515903 ( BOLT, SHEAR )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-00-138-6375
Part Number Cage Code Manufacturer
C4550-4-1081755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
EWSB926-4A1056878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
EWSB926-4A1080539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AIC4550-4-1006725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
Technical Data | NSN 5306-00-138-6375
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.267 INCHES MINIMUM AND 0.334 INCHES MAXIMUM
FASTENER LENGTH0.902 INCHES MINIMUM AND 0.949 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH260000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.164 INCHES NOMINAL
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
GRIP DIAMETER0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM