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National Stock Number:
5305-01-131-2934
Federal Supply Class:
5305
National Item Identification Number:
011312934
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:
| 10115278 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | CHT4057-5-11 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4057-5-11 | 73197 | HI-SHEAR CORPORATION | | HT4057-5-11 | 80539 | SPS TECHNOLOGIES, LLC | | HT4057-5-11 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | CHT4057-5-11 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4057-5-11A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4057-5-11A | 17446 | HUCK INTERNATIONAL, INC | | HT4057-5-11A | 73197 | HI-SHEAR CORPORATION | | ST3M733-5-11 | 76301 | THE BOEING COMPANY | | HT4057-5-11A | 80539 | SPS TECHNOLOGIES, LLC | | HT4057-5-11A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4057-5-11A | 97928 | HUCK INTL INC | | HT4057-5-11A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | ST3M733-5L11 | 06710 | VALLEY-TODECO, INC. | | ST3M733-5L11 | 06725 | SPS TECHNOLOGIES, LLC | | ST3M733-5L11 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | ST3M733-5L11 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | ST3M733-5L11 | 27624 | SPS TECHNOLOGIES LLC | | ST3M733-5L11 | 56878 | SPS TECHNOLOGIES, LLC | | ST3M733-5L11 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M733-5L11 | 59563 | REID PRODUCTS INC. | | ST3M733-5L11 | 60516 | WEST COAST AEROSPACE, INC. | | ST3M733-5L11 | 76301 | THE BOEING COMPANY | | ST3M733-5L11 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.204 INCHES MINIMUM AND 1.234 INCHES MAXIMUM | | GRIP LENGTH | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM | | GRIP DIAMETER | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM | | HEAD DIAMETER | 0.575 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | 23-112 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | 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 AND CHROMATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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