5305-01-396-1041, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-396-1041

Federal Supply Class:
5305

National Item Identification Number:
013961041

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:

801-6641188FNA34	53711	NAVAL SEA SYSTEMS COMMAND
801-6641188FNA34	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.375 INCHES
THREAD QUANTITY PER INCH	18
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.889 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
FASTENER LENGTH	1.000 INCHES NOMINAL
MATERIAL	PLASTIC POLYAMIDE LOCKING FEATURE
	STEEL COMP 630 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM F593 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND
	38.0 ROCKWELL C MAXIMUM FASTENER
MINIMUM TENSILE STRENGTH	135000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	105000 POUNDS PER SQUARE INCH
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.550 INCHES MINIMUM AND
	0.562 INCHES MAXIMUM
HEAD HEIGHT	0.368 INCHES MINIMUM AND
	0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.312 INCHES NOMINAL
LOCKING FEATURE	PELLET OR
	STRIP OR
	PATCH THREADS
NONDEFINITIVE SPEC/STD DATA	2 TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	801-6641188FNA34

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