NSN 5305-00-802-2643

Part Details | CLOSE TOLERANCE SCREW

5305-00-802-2643 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: 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 51B22114, 51B221-14, 5305-00-802-2643, 00-802-2643, 5305008022643, 008022643

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196200-802-264329294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

OFFSET CRUCIFORM (TORQUE SET)

Cross Reference | NSN 5305-00-802-2643
Part Number Cage Code Manufacturer
51B221-1492215ARCONIC GLOBAL FASTENERS & RINGS,INC.
51B221-1406950ARCONIC GLOBAL FASTENERS & RINGS,INC.
51B221-1473197HI-SHEAR CORPORATION
51B221-1417446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
51B221-14L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
51B221-1476823NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
51B221-140JRC1NORTHROP GRUMMAN TECHNICAL SERVICES,INC.
51B221-1480539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
51B221-1406725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
51B221-1427624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5305-00-802-2643
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.276 INCHES MINIMUM
FASTENER LENGTH1.136 INCHES MINIMUM AND 1.183 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE4 DISHED HEXAGON
HEAD DIAMETER0.361 INCHES MINIMUM AND 0.381 INCHES MAXIMUM
HEAD HEIGHT0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM
GRIP DIAMETER0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM