NSN 5305-00-005-0648

Part Details | CLOSE TOLERANCE SCREW

5305-00-005-0648 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: 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 51B22210, 51B222-10, 5305-00-005-0648, 00-005-0648, 5305000050648, 000050648

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 19, 197200-005-064829294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

OFFSET CRUCIFORM (TORQUE SET)

Cross Reference | NSN 5305-00-005-0648
Part Number Cage Code Manufacturer
51B222-1092215ARCONIC GLOBAL FASTENERS & RINGS,INC.
51B222-1006950ARCONIC GLOBAL FASTENERS & RINGS,INC.
51B222-1073197HI-SHEAR CORPORATION
51B222-1017446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
51B222-10L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
51B222-1076823NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
51B222-100JRC1NORTHROP GRUMMAN TECHNICAL SERVICES,INC.
51B222-1080539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
51B222-1006725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
51B222-1027624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5305-00-005-0648
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.316 INCHES MINIMUM
FASTENER LENGTH0.926 INCHES MINIMUM AND 0.973 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE2 DISHED HEXAGON
HEAD DIAMETER0.464 INCHES MINIMUM AND 0.488 INCHES MAXIMUM
HEAD HEIGHT0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA76823-51B222 MANUFACTURERS STANDARD