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National Stock Number:
5306-01-462-2190
Federal Supply Class:
5306
National Item Identification Number:
014622190
Description:
BOLT,CLOSE TOLERANCE
Detail:
An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.
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Manufacturer Information:
| 524680-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 |
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Techincal Specification:
| EXTENDED WASHER THICKNESS | 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.921 INCHES MINIMUM AND 0.937 INCHES MAXIMUM | | FASTENER LENGTH | 4.000 INCHES NOMINAL | | GRIP LENGTH | 1.000 INCHES NOMINAL | | GRIP DIAMETER | 0.6163 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM | | HEAD HEIGHT | 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 718 OVERALL | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | WIDTH BETWEEN FLATS | 0.620 INCHES MINIMUM AND 0.628 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 3.000 INCHES MINIMUM AND 3.062 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 11 |
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