NSN 5305-00-019-9914

Part Details | CLOSE TOLERANCE SCREW

5305-00-019-9914 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: NAS334CP40, 5305-00-019-9914, 00-019-9914, 5305000199914, 000199914

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 19, 197200-019-991429294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-019-9914
Part Number Cage Code Manufacturer
NAS334CP4080205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5305-00-019-9914
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
FASTENER LENGTH4.015 INCHES MINIMUM AND 4.064 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
GRIP DIAMETER0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA80205-NAS334 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT