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National Stock Number:
5306-00-150-4890
Federal Supply Class:
5306
National Item Identification Number:
001504890
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:
| 11797A06U026 | 59563 | REID PRODUCTS INC. | | 68484-6A026 | 56878 | SPS TECHNOLOGIES, LLC | | 68484-6A026 | 80539 | SPS TECHNOLOGIES, LLC | | AIC2263A06U026 | 06725 | SPS TECHNOLOGIES, LLC | | BM3200-6A026 | 17446 | HUCK INTERNATIONAL, INC | | BM3200-6A026 | 97928 | HUCK INTL INC | | PBF1041A6U026 | 27624 | SPS TECHNOLOGIES LLC | | STSBG000A06U026 | 98897 | LOCKHEED MARTIN CORP | | VAL23611-6D026 | 06710 | VALLEY-TODECO, INC. | | VS2978A06U026 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS2978A06U026 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| FASTENER LENGTH | 2.009 INCHES MINIMUM AND 2.056 INCHES MAXIMUM | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 1.625 INCHES NOMINAL | | HEAD HEIGHT | 0.210 INCHES NOMINAL | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | H-11,STS BS000,FSCM 98897 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 132000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | STS BS 000,LOCKHEED-GEORGIA CO MFR REF ALL TREATMENT RESPONSES OVERALL | | SURFACE TREATMENT | NICKEL AND CADMIUM AND CHROMATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.384 INCHES MINIMUM AND 0.431 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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