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National Stock Number:
5305-00-232-4507
Federal Supply Class:
5305
National Item Identification Number:
002324507
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:
| 3M46-4-8 | 06329 | ASC INTERNATIONAL, INC. | | 3M46-4-8 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3M46-4-8 | 17446 | HUCK INTERNATIONAL, INC | | 3M46-4-8 | 1V757 | WESCO AIRCRAFT HARDWARE CORP. | | 3M46-4-8 | 51792 | APOLLO AEROSPACE COMPONENTS LLC | | 3M46-4-8 | 56878 | SPS TECHNOLOGIES, LLC | | 54266-4-8 | 56878 | SPS TECHNOLOGIES, LLC | | 3M46-4-8 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3M46-4-8 | 73197 | HI-SHEAR CORPORATION | | HT4UA-8 | 73197 | HI-SHEAR CORPORATION | | 3M46-4-8 | 76301 | THE BOEING COMPANY | | HT408A-4-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 642AS0685-10 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | 3M46-4-8 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | HTS467-4-8 | 17446 | HUCK INTERNATIONAL, INC | | HT4UA-CA-4-8 | 73197 | HI-SHEAR CORPORATION | | HTS467-4-8 | 97928 | HUCK INTL INC | | HT4UA-8 | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | HT4UA-8 | R1120 | SATAIR A/S |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.953 INCHES MINIMUM AND 1.000 INCHES MAXIMUM | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | GRIP LENGTH | 0.4267 INCHES MINIMUM AND 0.4387 INCHES MAXIMUM | | HEAD HEIGHT | 0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM | | HEAD DIAMETER | 0.464 INCHES MINIMUM AND 0.506 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 5TH MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP 8735 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.443 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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