5305-01-349-4190 SCREW,CLOSE TOLERANCE Index 5305-01-349-4192 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-349-4191

Federal Supply Class:
5305

National Item Identification Number:
013494191

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:
03A174-3-20JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
03A174-3-21W025NORTHROP GRUMMAN SYSTEMS CORP
03A174-3-276823NORTHROP GRUMMAN SYSTEMS CORPORATION
123743-3-280539SPS TECHNOLOGIES, LLC
AIC1652-3-206725SPS TECHNOLOGIES, LLC
HR240-3-273197HI-SHEAR CORPORATION
HR240-3-2L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
PBF1417-3-227624SPS TECHNOLOGIES LLC
SC3102-3-20PTK6SPS TECHNOLOGIES INC
SC3120-3-206950HOWMET GLOBAL FASTENING SYSTEMS INC
SLB146-3-216258SPACE-LOK, INC.
T009-3-217446HUCK INTERNATIONAL, INC
T009-3-297928HUCK INTL INC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.455 INCHES MINIMUM AND 0.485 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
HEAD DIAMETER0.328 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEOFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALTITANIUM ALLOY UNS R56400 OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
SURFACE FINISH32.0 MICROINCHES OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.345 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH32


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