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National Stock Number:
5306-01-195-6599
Federal Supply Class:
5306
National Item Identification Number:
011956599
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:
| 10116138 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 74A480701-2001 | 0PXV4 | THE BOEING COMPANY | | 74A480701-2001 | 2V343 | APEX MANUFACTURING COMPANY, INC. | | 74A480701-2001 | 59563 | REID PRODUCTS INC. | | 74A480701-2001 | 6Z056 | CM MANUFACTURING INC | | 74A480701-2001 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 4.783 INCHES MINIMUM AND 4.803 INCHES MAXIMUM | | GRIP DIAMETER | 0.6225 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM | | GRIP LENGTH | 4.220 INCHES MINIMUM AND 4.240 INCHES MAXIMUM | | HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8844 CL3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL UNS K44220 OVERALL | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES GRIP | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 18 |
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