2990-00-508-6425 STACK AND JACKET ASSEMBLY,EXHAUS Index 5365-00-508-6432 SPACER,SLEEVE

National Stock Number:
5305-00-508-6429

Federal Supply Class:
5305

National Item Identification Number:
005086429

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:
LS15237C3-9D17446HUCK INTERNATIONAL, INC
LS15237C3-9D56878SPS TECHNOLOGIES, LLC
LS15237C3-9D73197HI-SHEAR CORPORATION
LS15237C3-9D92215HOWMET GLOBAL FASTENING SYSTEMS INC
LS15237C3-9D97928HUCK INTL INC
LS15237C3-9D98897LOCKHEED MARTIN CORP
LS15237C3-9DL4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.763 INCHES MINIMUM AND 0.813 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH0.890 INCHES MINIMUM AND 0.920 INCHES MAXIMUM
GRIP DIAMETER0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
HEAD DIAMETER0.266 INCHES MINIMUM AND 0.303 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
SHANK UNTHREADED HOLE DIAMETER0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD LENGTH0.318 INCHES MINIMUM AND 0.368 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNJF


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