5305-01-228-4691, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-228-4691

Federal Supply Class:
5305

National Item Identification Number:
012284691

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:

20097H3-8C-16Z	56878	SPS TECHNOLOGIES, LLC
3176207-B-261	10001	NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
3176207-B-261	44114	BAE SYSTEMS LAND & ARMAMENTS L.P.
FF-S-86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNRC
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	13
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.969 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
FASTENER LENGTH	0.969 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
MATERIAL	STEEL UNS K03104 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CHROMATE ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,TYPE 2,CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	38.0 ROCKWELL C MINIMUM AND
	45.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	24100 POUNDS PER SQUARE INCH
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.735 INCHES MINIMUM AND
	0.750 INCHES MAXIMUM
HEAD HEIGHT	0.492 INCHES MINIMUM AND
	0.500 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.375 INCHES MINIMUM AND
	0.379 INCHES MAXIMUM
HOLE CONFIGURATION STYLE	ROUND INTERNAL HEXAGON
HOLE TYPE	DRILLED
HOLE QUANTITY	6
HOLE DIAMETER	0.061 INCHES MINIMUM AND
	0.067 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA	81348-FF-S-86 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA	6 TYPE AND
	1/2-13UNRC SIZE
DEPARTURE FROM CITED DOCUMENT	FF-S-66,PARAGRAPH 3.5.2,DRILLED HEAD
SUPPLEMENTARY FEATURES	MEETS ANSI B18.3,TABLES 1 AND 1A EXCEPT DRILLED HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FF-S-86

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