NSN 5305-00-185-9637

Part Details | CLOSE TOLERANCE SCREW

5305-00-185-9637 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: NAS280916, NAS2809-16, 5305-00-185-9637, 00-185-9637, 5305001859637, 001859637

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 07, 197100-185-963729294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

OFFSET CRUCIFORM (TORQUE SET)

Cross Reference | NSN 5305-00-185-9637
Part Number Cage Code Manufacturer
NAS2809-1680205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5305-00-185-9637
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.562 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.751 INCHES MINIMUM AND 0.801 INCHES MAXIMUM
FASTENER LENGTH1.761 INCHES MINIMUM AND 1.791 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER1.087 INCHES MINIMUM AND 1.145 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
GRIP DIAMETER0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA80205-NAS2809 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD