5305-01-192-5749 SCREW,CLOSE TOLERANCE Index 5305-01-192-5751 SCREW,MACHINE

National Stock Number:
5305-01-192-5750

Federal Supply Class:
5305

National Item Identification Number:
011925750

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.


Manufacturer Information:
HT353P3-1273197HI-SHEAR CORPORATION
HT353P3-12L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
HT4058-3-12A06950HOWMET GLOBAL FASTENING SYSTEMS INC
HT4058-3-12A17446HUCK INTERNATIONAL, INC
HT4058-3-12A56878SPS TECHNOLOGIES, LLC
HT4058-3-12A80539SPS TECHNOLOGIES, LLC
ST3M794V3-12A76301THE BOEING COMPANY
HT4058-3-12A92215HOWMET GLOBAL FASTENING SYSTEMS INC
HT4058-3-12A97928HUCK INTL INC


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH1.140 INCHES MINIMUM AND 1.187 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
HEAD HEIGHT0.080 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
HEAD DIAMETER0.4625 INCHES MINIMUM AND 0.4672 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4967 COMP 6AL4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALTITANIUM ALLOY OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
SPECIAL FEATURESASSEMBLED WITH ONE O RING PER 7M80 FSCM 76301
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH32


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