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National Stock Number:
5305-01-095-5720
Federal Supply Class:
5305
National Item Identification Number:
010955720
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:
| 11907-5L3 | 59563 | REID PRODUCTS INC. | | 642AS0731-1 | 27624 | SPS TECHNOLOGIES LLC | | 642AS0731-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | | 642AS0731-1 | 56878 | SPS TECHNOLOGIES, LLC | | HT4024L5-3 | 73197 | HI-SHEAR CORPORATION | | 642AS0731-1 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M455-5L3 | 76301 | THE BOEING COMPANY | | HT4024L5-3 | 97928 | HUCK INTL INC | | HT4024L5-3 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.516 INCHES MINIMUM AND | | 0.546 INCHES MAXIMUM | | FASTENER LENGTH | 0.704 INCHES MINIMUM AND | | 0.734 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 TYPE 1 OR TYPE 2 OR TYPE 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FILLISTER COUNTERSUNK | | HEAD DIAMETER | 0.429 INCHES MINIMUM AND | | 0.477 INCHES MAXIMUM | | HEAD HEIGHT | 0.016 INCHES MINIMUM | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | GRIP LENGTH | 0.188 INCHES NOMINAL | | GRIP DIAMETER | 0.3115 INCHES MINIMUM AND | | 0.3120 INCHES MAXIMUM |
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