5305-01-382-5957, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-382-5957

Federal Supply Class:
5305

National Item Identification Number:
013825957

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:

801-6641189FN33	53711	NAVAL SEA SYSTEMS COMMAND
801-6641189FNB33	53711	NAVAL SEA SYSTEMS COMMAND
MIL-S-1222	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MIL-DTL-1222	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	16
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.875 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
FASTENER LENGTH	1.000 INCHES NOMINAL
MATERIAL	PLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING FEATURE
	STEEL COMP 630 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE
	ASTM A564 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
SURFACE TREATMENT	PASSIVATE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND
	38.0 ROCKWELL C MAXIMUM THREADS
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	0.375 INCHES MINIMUM AND
	0.379 INCHES MAXIMUM
LOCKING FEATURE	PATCH OR
	PELLET OR
	STRIP THREADS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-DTL-1222

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