NSN 5306-00-256-8682

Part Details | SHEAR BOLT

5306-00-256-8682 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: NAS64098, NAS640-98, 5306-00-256-8682, 00-256-8682, 5306002568682, 002568682

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 20, 197300-256-868215903 ( BOLT, SHEAR )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-256-8682
Part Number Cage Code Manufacturer
NAS640-9880205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5306-00-256-8682
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER1.250 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.505 INCHES MINIMUM AND 1.722 INCHES MAXIMUM
FASTENER LENGTH7.807 INCHES MINIMUM AND 7.837 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON
HEAD HEIGHT1.145 INCHES MINIMUM AND 1.165 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.308 INCHES MINIMUM AND 1.318 INCHES MAXIMUM
EXTENDED WASHER DIAMETER2.115 INCHES MINIMUM AND 2.125 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.259 INCHES MINIMUM AND 0.279 INCHES MAXIMUM
GRIP LENGTH6.115 INCHES MINIMUM AND 6.135 INCHES MAXIMUM
GRIP DIAMETER1.2475 INCHES MINIMUM AND 1.2490 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA80205-NAS640 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD