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National Stock Number:
5306-00-926-5527
Federal Supply Class:
5306
National Item Identification Number:
009265527
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:
| AIC260E4-8 | 06725 | SPS TECHNOLOGIES, LLC | | C305-4-8 | 56878 | SPS TECHNOLOGIES, LLC | | EWB26-4-8 | 56878 | SPS TECHNOLOGIES, LLC | | EWB26-4-8 | 80539 | SPS TECHNOLOGIES, LLC | | C305-4-8 | 81755 | LOCKHEED MARTIN CORPORATION | | C305-4-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS2005-4-8 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS2005-4-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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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 | 0.506 INCHES MINIMUM AND | | 0.556 INCHES MAXIMUM | | FASTENER LENGTH | 1.016 INCHES MINIMUM AND | | 1.046 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | SINGLE SHEAR STRENGTH | 7650 POUNDS PER SQUARE INCH | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HEAD HEIGHT | 0.254 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.304 INCHES MINIMUM AND | | 0.313 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.465 INCHES MINIMUM AND | | 0.475 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.042 INCHES NOMINAL | | GRIP LENGTH | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND | | 0.2495 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 81755 | | DESIGN CONTROL REFERENCE | C305-4-8 |
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