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National Stock Number:
5305-01-200-9877
Federal Supply Class:
5305
National Item Identification Number:
012009877
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:
| 11839C5-8-27 | 59563 | REID PRODUCTS INC. | | 3M1034C5-8-27 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3M1034C5-8-27 | 60516 | WEST COAST AEROSPACE, INC. | | 3M1034C5-8-27 | 76301 | THE BOEING COMPANY | | HT4075D5-8-27 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4075D5-8-27 | 56878 | SPS TECHNOLOGIES, LLC | | HT4075D5-8-27 | 73197 | HI-SHEAR CORPORATION | | HT4075D5-8-27 | 80539 | SPS TECHNOLOGIES, LLC | | HT4075D5-8-27 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4075D5-8-27 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | WC4075C5-8-27 | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.016 INCHES MINIMUM AND 1.046 INCHES MAXIMUM | | GRIP DIAMETER | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM | | GRIP LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | HEAD DIAMETER | 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | HEAD STYLE | FLAT 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 | 0.312 INCHES | | SPECIAL FEATURES | TAPPED HOLE IN HEAD 0.1380-32,UNJC-3B THREADS. DISTANCE FROM TOP OF HEAD TO INJECTION PORT 0.270 INCH. INJECTION PORT 0.120 IN. LG,0.060 IN. WIDE | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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