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National Stock Number:
5305-01-286-7995
Federal Supply Class:
5305
National Item Identification Number:
012867995
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:
| 11883-5-14/11883-5L14 | 59563 | REID PRODUCTS INC. | | 3M926-5-14 | 76301 | THE BOEING COMPANY | | 3M926-5L14 | 007R1 | TWIST TITE MFG, INC | | HT4068-5-14A | 17446 | HUCK INTERNATIONAL, INC | | HT4068-5-14 | 73197 | HI-SHEAR CORPORATION | | 3M926-5L14 | 76301 | THE BOEING COMPANY | | HT4086-5-14A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4086-5-14A | 17446 | HUCK INTERNATIONAL, INC | | HT4068-5-14A | 56878 | SPS TECHNOLOGIES, LLC | | HT4068-5-14A | 73197 | HI-SHEAR CORPORATION | | HT4068-5-14A | 97928 | HUCK INTL INC | | HT4086-5-14A | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4068-5-14A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COLOR | WHITE TOP OF HEAD | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.391 INCHES MINIMUM AND 1.421 INCHES MAXIMUM | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | GRIP DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | GRIP LENGTH | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM | | HEAD DIAMETER | 0.429 INCHES MINIMUM AND 0.477 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | STEEL COMP XM-13 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488,TYPE 2 CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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