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National Stock Number:
5305-00-232-0689
Federal Supply Class:
5305
National Item Identification Number:
002320689
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:
| 3MA583-8 | 73197 | HI-SHEAR CORPORATION | | 3MA583-8 | 76301 | THE BOEING COMPANY | | 3MFR583-8 | 76301 | THE BOEING COMPANY | | 3MA583-8 | 80539 | SPS TECHNOLOGIES, LLC | | 3MA583-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3MA583-8 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | HT4062-3-8 | 17446 | HUCK INTERNATIONAL, INC | | HT4062-3-8 | 73197 | HI-SHEAR CORPORATION | | HT4062-3-8 | 80539 | SPS TECHNOLOGIES, LLC | | HT4062-3-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4062-3-8 | 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 | 0.890 INCHES MINIMUM AND 0.937 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | HEAD DIAMETER | 0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | STEEL COMP 4130 OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | P.S.13421 FSC-76301 MFR REF SINGLE TREATMENT RESPONSE GRIP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | P.S.13421FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE HEAD | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | SURFACE TREATMENT | PRIMER GRIP | | SURFACE TREATMENT | PRIMER HEAD | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 32 |
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