5305-01-443-4454, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-443-4454

Federal Supply Class:
5305

National Item Identification Number:
014434454

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Manufacturer Information:

218013241	53711	NAVAL SEA SYSTEMS COMMAND
556-6406600-MVSA-A21	53711	NAVAL SEA SYSTEMS COMMAND
556-6406600-MVSA-B21	53711	NAVAL SEA SYSTEMS COMMAND

Techincal Specification:

FASTENER LENGTH	0.625 INCHES NOMINAL
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM FASTENER
HEAD DIAMETER	0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD HEIGHT	0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM F594 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	PLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIAL	STEEL COMP 630 FASTENER
MINIMUM YIELD STRENGTH	105000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH	135000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.542 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS	0.156 INCHES NOMINAL

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