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National Stock Number:
5306-00-490-6361
Federal Supply Class:
5306
National Item Identification Number:
004906361
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:
| 65102-11060-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.500 INCHES NOMINAL FIRST HOLE | | FASTENER LENGTH | 3.650 INCHES NOMINAL | | GRIP DIAMETER | 0.7486 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM | | GRIP LENGTH | 3.060 INCHES NOMINAL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.230 INCHES NOMINAL | | HEAD DIAMETER | 1.050 INCHES NOMINAL | | HEAD STYLE | ROUND W/WRENCH FLATS CHAMFERED | | MATERIAL | STEEL COMP 4340 OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES NOMINAL FIRST HOLE | | SPECIAL FEATURES | HOLES 1 AND 2 90 DEGREES APART | | WIDTH BETWEEN FLATS | 0.865 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 TY 3 CL 2 FED SPEC 2ND TREATMENT RESPONSE OR 8414,FSCM 78286 MFR REF 3RD TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OR NICKEL OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.590 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNF |
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