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National Stock Number:
5305-00-046-9975
Federal Supply Class:
5305
National Item Identification Number:
000469975
Description:
SCREW,CLOSE TOLERANCE
Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
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Manufacturer Information:
| BACB30LU2-4 | 06710 | VALLEY-TODECO, INC. | | BACB30LU2-4 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30LU2-4 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LU2-4 | 17446 | HUCK INTERNATIONAL, INC | | BACB30LU2-4 | 17943 | FEDERAL MANUFACTURING CORP | | BACB30LU2-4 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LU2-4 | 27624 | SPS TECHNOLOGIES LLC | | BACB30LU2-4 | 27970 | PANAMETRICS LLC | | BACB30LU2-4 | 56878 | SPS TECHNOLOGIES, LLC | | BACB30LU2-4 | 57928 | SONIC INDUSTRIES, INC. | | BACB30LU2-4 | 80539 | SPS TECHNOLOGIES, LLC | | BACB30LU2-4 | 81205 | THE BOEING COMPANY | | BACB30LU2-4 | 82918 | THE BOEING COMPANY | | BACB30LU2-4 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LU2-4 | 97928 | HUCK INTL INC |
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Techincal Specification:
| FASTENER LENGTH | 0.580 INCHES MINIMUM AND 0.610 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049RJGCAMS 6322 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | THREAD CLASS | 3A | | THREAD LENGTH | 0.320 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
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