NSN 5305-01-193-6851

Part Details | CLOSE TOLERANCE SCREW

5305-01-193-6851 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.

Alternate Parts: HT813753AS, HT8137-5-3AS, HT813753AS, HT8137-5-3AS, ST3M430V53AS, ST3M430V5-3AS, ST3M430V53AS, ST3M430V5-3AS, HT271A53, HT271A5-3, ST3M430V53AS, ST3M430V5-3AS, BM33024V53U, BM33024V5-3U, BM33024V53U, BM33024V5-3U, HT271A53, HT271A5-3, 11017953AS, 110179-5-3AS, 11017953AS, 110179-5-3AS, ST3M430V53AS, ST3M430V5-3AS, 5305-01-193-6851, 01-193-6851, 5305011936851, 011936851

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 06, 198401-193-685129294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-193-6851
Part Number Cage Code Manufacturer
HT8137-5-3AS92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-5-3AS06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M430V5-3AS76301BOEING COMPANY, THEDBA BOEING
ST3M430V5-3AS58998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HT271A5-373197HI-SHEAR CORPORATION
ST3M430V5-3AS1VSL7HOUSTON PRECISION FASTENERS I, LP
BM33024V5-3U17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM33024V5-3U97928HUCK INTL INC
HT271A5-3L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
110179-5-3AS56878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
110179-5-3AS80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
ST3M430V5-3AS60516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-193-6851
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.505 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
FASTENER LENGTH0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
HEAD STYLE1 HEXAGON COUNTERSUNK
HEAD DIAMETER0.6287 INCHES MINIMUM AND 0.6335 INCHES MAXIMUM
HEAD HEIGHT0.0878 INCHES MINIMUM AND 0.0899 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
SPECIAL FEATURESCETYL ALCOHOL LUBRICATION,FURNISHED WITH O RING