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National Stock Number:
5305-01-223-7671
Federal Supply Class:
5305
National Item Identification Number:
012237671
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:
| 11881C6-9A | 59563 | REID PRODUCTS INC. | | 3M925C6-9A | 007R1 | TWIST TITE MFG, INC | | 3M925C6-9A | 06710 | VALLEY-TODECO, INC. | | 3M925C6-9A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M925C6-9A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | 3M925C6-9A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT4067-6-9A | 06725 | SPS TECHNOLOGIES, LLC | | HT4067-6-9A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4067-6-9A | 0PTK6 | SPS TECHNOLOGIES INC | | HT4067-6-9A | 17446 | HUCK INTERNATIONAL, INC | | HT4067-6-9A | 27624 | SPS TECHNOLOGIES LLC | | HT4067-6-9A | 56878 | SPS TECHNOLOGIES, LLC | | HT4067-6-9A | 73197 | HI-SHEAR CORPORATION | | 3M925C6-9A | 76301 | THE BOEING COMPANY | | WC4067-6-9A | 60516 | WEST COAST AEROSPACE, INC. | | HT4067-6-9A | 80539 | SPS TECHNOLOGIES, LLC | | HT4067-6-9A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4067-6-9A | 97928 | HUCK INTL INC | | HT4067-6-9A | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4067-6-9A | 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 | 1.188 INCHES MINIMUM AND 1.218 INCHES MAXIMUM | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM | | HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM | | HEAD DIAMETER | 0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | 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 | 0.375 INCHES | | SPECIAL FEATURES | ASSEMBLED WITH ONE O-RING PER ST7M251,FSCM 76301 | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | 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 CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.616 INCHES MINIMUM AND 0.666 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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