|
|
|
National Stock Number:
5306-01-296-6421
Federal Supply Class:
5306
National Item Identification Number:
012966421
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.
|
Manufacturer Information:
| 76924-12H34 | 56874 | LARS INDUSTRIES INC DBA MCDONALD TECHNOLOGIES INTL INC | | 76924-12H34 | 56878 | SPS TECHNOLOGIES, LLC | | HS4243-12H34 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | AIC6924-12H34 | 06725 | SPS TECHNOLOGIES, LLC | | PBF1446-12H34 | 27624 | SPS TECHNOLOGIES LLC | | HS4243-12H34 | 8V613 | THE BOEING COMPANY |
|
Techincal Specification:
| EXTENDED WASHER THICKNESS | 0.175 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 1.419 INCHES MINIMUM AND 1.429 INCHES MAXIMUM | | FASTENER LENGTH | 3.424 INCHES MINIMUM AND 3.454 INCHES MAXIMUM | | GRIP DIAMETER | 0.745 INCHES MINIMUM AND 0.748 INCHES MAXIMUM | | GRIP LENGTH | 2.125 INCHES NOMINAL | | HEAD HEIGHT | 0.711 INCHES NOMINAL | | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER | | HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS | | HOLE DIAMETER | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM | | HOLE QUANTITY | 4 | | HOLE TYPE | DRILLED | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5758 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COBALT COMP MP-35-N OVERALL | | MINIMUM YIELD STRENGTH | 145000 POUNDS PER SQUARE INCH | | MINIMUM TENSILE STRENGTH | 260000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | WIDTH BETWEEN FLATS | 0.403 INCHES MINIMUM AND 0.414 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 1.299 INCHES MINIMUM AND 1.329 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 16 |
|
|