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National Stock Number:
5306-01-244-8640
Federal Supply Class:
5306
National Item Identification Number:
012448640
Description:
BOLT,SHEAR
Detail:
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.
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Manufacturer Information:
| 9505M56P02 | 07482 | GENERAL ELECTRIC COMPANY | | 9505M56P04 | 07482 | GENERAL ELECTRIC COMPANY |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.525 INCHES MINIMUM AND | | 0.615 INCHES MAXIMUM | | FASTENER LENGTH | 1.041 INCHES MINIMUM AND | | 1.061 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY 718 OVERALL | | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER | | HEAD HEIGHT | 0.293 INCHES MINIMUM AND | | 0.313 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND | | 0.448 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.060 INCHES MINIMUM AND | | 0.070 INCHES MAXIMUM | | GRIP LENGTH | 0.426 INCHES MINIMUM AND | | 0.536 INCHES MAXIMUM | | GRIP DIAMETER | 0.249 INCHES NOMINAL | | SPECIAL FEATURES | THIS BOLT IS SAME AS P/N J814P027A, EXCEPT HAS BEEN ALTERED WITH DRILLED HOLE FOR COTTER PIN. | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, SHEAR-DOUBLE HEX HEAD, .250-28THD. |
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