5305-01-129-6933 SCREW,CLOSE TOLERANCE Index 5305-01-129-6935 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-129-6934

Federal Supply Class:
5305

National Item Identification Number:
011296934

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:
10115203A486GNIMIKKEISTOKESKUS NCB FINLAND
110179-5-20AS80539SPS TECHNOLOGIES, LLC
BM33024V5-20U17446HUCK INTERNATIONAL, INC
HT271A5-2073197HI-SHEAR CORPORATION
BM33024V5-20U97928HUCK INTL INC
110179-5-20ASK5673SPS TECHNOLOGIES LTD TJ BROOKS DIVISION
ST3M430V5-20AS007R1TWIST TITE MFG, INC
HT8137-5-20AS06950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M430V5-20AS1VSL7HOUSTON PRECISION FASTENERS I LP
ST3M430V5-20AS58998FASTENER INNOVATION TECHNOLOGY, INC.
WC8137-5-20A60516WEST COAST AEROSPACE, INC.
ST3M430V5-20AS76301THE BOEING COMPANY
HT8137-5-20AS92215HOWMET GLOBAL FASTENING SYSTEMS INC
HT271A5-20L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH1.765 INCHES MINIMUM AND 1.812 INCHES MAXIMUM
GRIP LENGTH1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
HEAD HEIGHT0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM
HEAD DIAMETER0.629 INCHES MINIMUM AND 0.634 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATIONNAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALTITANIUM ALLOY UNS R54520 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIAL FEATURESFURNISH WITH ONE O RING
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.505 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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