NSN 5305-00-001-9940

Part Details | CLOSE TOLERANCE SCREW

5305-00-001-9940 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: GB510AD3A4, 72791H3A4, 72791H3A4, 5305-00-001-9940, 00-001-9940, 5305000019940, 000019940

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 29, 197200-001-994029294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-00-001-9940
Part Number Cage Code Manufacturer
GB510AD3A426512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
72791H3A450392SPS TECHNOLOGIES INC
72791H3A456878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
Technical Data | NSN 5305-00-001-9940
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.236 INCHES MINIMUM
FASTENER LENGTH0.470 INCHES MINIMUM AND 0.517 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH132000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.325 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.250 INCHES NOMINAL
GRIP DIAMETER0.1885 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM