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National Stock Number:
5305-01-251-0781
Federal Supply Class:
5305
National Item Identification Number:
012510781
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:
| 10113591 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 11873-3-4-4 | 59563 | REID PRODUCTS INC. | | 3930AS1210-3-4-4 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | | 3930AS270 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | | 3M707-3-4-4 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3M707-3-4-4 | 76301 | THE BOEING COMPANY | | HT4041-3-4-4 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4041-3-4-4 | 0PTK6 | SPS TECHNOLOGIES INC | | HT4041-3-4-4 | 17446 | HUCK INTERNATIONAL, INC | | HT4041-3-4-4 | 56878 | SPS TECHNOLOGIES, LLC | | HT4041-3-4-4 | 73197 | HI-SHEAR CORPORATION | | HT4041-3-4-4 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4041-3-4-4 | 97928 | HUCK INTL INC | | HT4041-3-4-4 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | WC4041-3-4-4 | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.225 INCHES MINIMUM AND | | 0.275 INCHES MAXIMUM | | FASTENER LENGTH | 0.485 INCHES MINIMUM AND | | 0.515 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FILLISTER COUNTERSUNK | | HEAD DIAMETER | 0.297 INCHES MINIMUM AND | | 0.302 INCHES MAXIMUM | | HEAD HEIGHT | 0.056 INCHES MINIMUM AND | | 0.060 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | GRIP LENGTH | 0.240 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND | | 0.1895 INCHES MAXIMUM |
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