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National Stock Number:
5306-00-938-3974
Federal Supply Class:
5306
National Item Identification Number:
009383974
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:
| 92147-8-36 | 56878 | SPS TECHNOLOGIES, LLC | | AIC516B8-36 | 06725 | SPS TECHNOLOGIES, LLC | | BM17020-8-36A | 17446 | HUCK INTERNATIONAL, INC | | C081-8-36 | 81755 | LOCKHEED MARTIN CORPORATION | | BM17020-8-36A | 97928 | HUCK INTL INC | | BM55132-8-36 | 97928 | HUCK INTL INC | | VCD0020-8-36 | 06710 | VALLEY-TODECO, INC. | | VS2521-8F36 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | GB511B8-36 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | GB511GG8-36A | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | PBF1479-8-36A | 27624 | SPS TECHNOLOGIES LLC | | EWSB22-8A36 | 56878 | SPS TECHNOLOGIES, LLC | | EWSB22-8A36 | 80539 | SPS TECHNOLOGIES, LLC | | VS2521-8F36 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| FASTENER LENGTH | 2.751 INCHES MINIMUM AND 2.781 INCHES MAXIMUM | | GRIP DIAMETER | 0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM | | GRIP LENGTH | 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM | | HEAD HEIGHT | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.516 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 20 |
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