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National Stock Number:
5305-01-432-5894
Federal Supply Class:
5305
National Item Identification Number:
014325894
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:
| 10113810 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 11825D4-6A | 59563 | REID PRODUCTS INC. | | 3M1170D4-6A | 06710 | VALLEY-TODECO, INC. | | 3M1170D4-6A | 06725 | SPS TECHNOLOGIES, LLC | | 3M1170D4-6A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 11845D4-6A | 59563 | REID PRODUCTS INC. | | 3M1170D4-6A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M1170D4-6A | 17446 | HUCK INTERNATIONAL, INC | | 3M1170D4-6A | 1EM77 | B & B SPECIALTIES INC | | 3M1170D4-6A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | 3M1170D4-6A | 56878 | SPS TECHNOLOGIES, LLC | | 3M1170D4-6A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3M1170D4-6A | 59563 | REID PRODUCTS INC. | | 3M1170D4-6A | 60516 | WEST COAST AEROSPACE, INC. | | TX1027D4-6A | 06725 | SPS TECHNOLOGIES, LLC | | TX1027D4-6A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1027D4-6A | 0PTK6 | SPS TECHNOLOGIES INC | | HP1170D4-6 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | TX1027D4-6A | 27624 | SPS TECHNOLOGIES LLC | | TX1027D4-6A | 56878 | SPS TECHNOLOGIES, LLC | | TX1027D4-6A | 73197 | HI-SHEAR CORPORATION | | 3M1170D4-6A | 76301 | THE BOEING COMPANY | | TX1027D4-6A | 80539 | SPS TECHNOLOGIES, LLC | | 3M1170D4-6A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3M1170D4-6A | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1027D4-6A | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1027D4-6A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.469 INCHES NOMINAL | | FASTENER LENGTH | 0.834 INCHES MINIMUM AND | | 0.854 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | PH13-8M0 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.438 INCHES MINIMUM AND | | 0.445 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | SIX SPLINE | | GRIP LENGTH | 0.365 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM |
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