5305-00-006-6574, SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-00-006-6574

Federal Supply Class:
5305

National Item Identification Number:
000066574

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.

Manufacturer Information:

FF-S-85	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS90725-600	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS90725-600	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

DEPARTURE FROM CITED DESIGNATOR	MATERIAL MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
FASTENER LENGTH	0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	120000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	85000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND 10P STYLE AND 5 GRADE
SPECIAL TEST FEATURES	SPECIAL QUALITY CONTROL TESTING
WIDTH BETWEEN FLATS	0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
TEST DATA DOCUMENT	81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.000 INCHES MAXIMUM
THREAD QUANTITY PER INCH	16
THREAD SERIES DESIGNATOR	UNC

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