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National Stock Number:
5305-01-477-5620
Federal Supply Class:
5305
National Item Identification Number:
014775620
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:
| 11925C5-20A | 59563 | REID PRODUCTS INC. | | HT4020-5-20A | 06725 | SPS TECHNOLOGIES, LLC | | HT4020-5-20A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-5-20A | 0PTK6 | SPS TECHNOLOGIES INC | | HT4020-5-20A | 17446 | HUCK INTERNATIONAL, INC | | HT4020-5-20A | 27624 | SPS TECHNOLOGIES LLC | | ST3M652C5-20A | 06710 | VALLEY-TODECO, INC. | | ST3M652C5-20A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | HT4020-5-20A | 56878 | SPS TECHNOLOGIES, LLC | | HT4020-5-20A | 73197 | HI-SHEAR CORPORATION | | HT4020-5-20A | 80539 | SPS TECHNOLOGIES, LLC | | HT4020-5-20A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-5-20A | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4020-5-20A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | ST3M652C5-20A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | ST3M652C5-20A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | WC4020-5-20A | 60516 | WEST COAST AEROSPACE, INC. | | ST3M652C5-20A | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | AGAV | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | HEAD HEIGHT | 0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM | | HEAD DIAMETER | 0.629 INCHES MINIMUM AND 0.634 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 | 0.312 INCHES | | SPECIAL FEATURES | FURNISHED WITH ONE O-RING | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.505 INCHES MINIMUM AND 0.572 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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