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National Stock Number:
5305-01-579-8731
Federal Supply Class:
5305
National Item Identification Number:
015798731
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:
| ST3M652C6-22A | 06710 | VALLEY-TODECO, INC. | | ST3M652C6-22A | 06725 | SPS TECHNOLOGIES, LLC | | ST3M652C6-22A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M652C6-22A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | ST3M652C6-22A | 17446 | HUCK INTERNATIONAL, INC | | ST3M652C6-22A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | ST3M652C6-22A | 27624 | SPS TECHNOLOGIES LLC | | ST3M652C6-22A | 56878 | SPS TECHNOLOGIES, LLC | | ST3M652C6-22A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M652C6-22A | 59563 | REID PRODUCTS INC. | | ST3M652C6-22A | 60516 | WEST COAST AEROSPACE, INC. | | ST3M652C6-22A | 73197 | HI-SHEAR CORPORATION | | ST3M652C6-22A | 76301 | THE BOEING COMPANY | | ST3M652C6-22A | 80539 | SPS TECHNOLOGIES, LLC | | ST3M652C6-22A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M652C6-22A | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | ST3M652C6-22A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 2.016 INCHES NOMINAL | | GRIP DIAMETER | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | GRIP LENGTH | 1.375 INCHES NOMINAL | | HEAD DIAMETER | 0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW CLOSE TOLERANCE ASSEMBLY 100 DEGREES COUNTERSUNK SEALING HEAD DOVETAIL SLOT CRES 125 KSI FTU | | SPECIAL FEATURES | FURNISHED WITH ONE O RING, CETYL ALCOHOL LUBRICANT, WHITE PAINT ON NONBEARING SURFACE OF HEAD | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.641 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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