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National Stock Number:
5305-00-046-8786
Federal Supply Class:
5305
National Item Identification Number:
000468786
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:
| 73991H6-18 | 50392 | SPS TECHNOLOGIES INC | | 73991H6-18 | 56878 | SPS TECHNOLOGIES, LLC | | BM19031-6-18 | 17446 | HUCK INTERNATIONAL, INC | | BM19031-6-18 | 97928 | HUCK INTL INC | | HT309-6-18 | 73197 | HI-SHEAR CORPORATION | | HT309-6-18 | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | HT8177-6-18 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT8177-6-18 | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | ST3M562-6-18 | 17446 | HUCK INTERNATIONAL, INC | | ST3M562-6-18 | 73197 | HI-SHEAR CORPORATION | | ST3M562-6-18 | 76301 | THE BOEING COMPANY | | ST3M562-6-18 | 80539 | SPS TECHNOLOGIES, LLC | | ST3M562-6-18 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M562-6-18 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.509 INCHES MINIMUM AND 1.556 INCHES MAXIMUM | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM | | HEAD DIAMETER | 0.752 INCHES MINIMUM AND 0.762 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | 23-105 TYPE 1,76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MAC PS13145,76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.374 INCHES MINIMUM AND 0.441 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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