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National Stock Number:
5305-00-316-8095
Federal Supply Class:
5305
National Item Identification Number:
003168095
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:
| 10125175 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | HT4017-08-3 | 17446 | HUCK INTERNATIONAL, INC | | HT4017-08-3 | 27624 | SPS TECHNOLOGIES LLC | | HT4017-08-3 | 56878 | SPS TECHNOLOGIES, LLC | | HT4017-08-3 | 73197 | HI-SHEAR CORPORATION | | HT4017-08-3 | 80539 | SPS TECHNOLOGIES, LLC | | ST3M649-08-3 | 76301 | THE BOEING COMPANY | | HT4017-08-3 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4017-08-3 | 97928 | HUCK INTL INC | | HT4017-08-3 | 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 | 0.484 INCHES MINIMUM AND 0.514 INCHES MAXIMUM | | GRIP DIAMETER | 0.1630 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM | | GRIP LENGTH | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM | | HEAD DIAMETER | 0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM | | HEAD STYLE | OVAL COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | 23-112 TY D,76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.287 INCHES MINIMUM AND 0.337 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJC | | THREAD QUANTITY PER INCH | 32 |
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