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National Stock Number:
5305-01-104-8394
Federal Supply Class:
5305
National Item Identification Number:
011048394
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:
| 11883-4-10/11883-4L10 | 59563 | REID PRODUCTS INC. | | 3A926-4L10 | 76301 | THE BOEING COMPANY | | 3M926-4L10 | 007R1 | TWIST TITE MFG, INC | | 3M926-4L10 | 06710 | VALLEY-TODECO, INC. | | 3M926-4L10 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M926-4-10 | 76301 | THE BOEING COMPANY | | HT4068-4-10A | 06725 | SPS TECHNOLOGIES, LLC | | HT4068-4-10A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4068-4-10A | 17446 | HUCK INTERNATIONAL, INC | | 3M926-4L10 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | HT4068-4-10 | 56878 | SPS TECHNOLOGIES, LLC | | HT4068-4-10 | 73197 | HI-SHEAR CORPORATION | | 3M926-4L10 | 76301 | THE BOEING COMPANY | | HT4068-4-10 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4068-4-10A | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4068-4-10A | 27624 | SPS TECHNOLOGIES LLC | | HT4068-4-10A | 56878 | SPS TECHNOLOGIES, LLC | | HT4068-4-10A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT4068-4-10A | 60516 | WEST COAST AEROSPACE, INC. | | WC4068-4-10 | 60516 | WEST COAST AEROSPACE, INC. | | HT4068-4-10A | 73197 | HI-SHEAR CORPORATION | | HT4068-4-10A | 80539 | SPS TECHNOLOGIES, LLC | | HT4068-4-10A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4068-4-10A | 97928 | HUCK INTL INC | | HT4068-4-10A | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4068-4-10A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 101.0 DEGREES NOMINAL | | FASTENER LENGTH | 1.079 INCHES MINIMUM AND 1.109 INCHES MAXIMUM | | GRIP LENGTH | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | HEAD DIAMETER | 0.3898 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM | | HEAD STYLE | OVAL COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM AND CHROMATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) | | THREAD QUANTITY PER INCH | 28 |
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