5305-00-143-1320, SCREW,CAP,SOCKET HEAD

5305-00-143-1318 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-143-1320

Federal Supply Class:
5305

National Item Identification Number:
001431320

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:

1614365PC26	10001	NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
FFS86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.112 INCHES
THREAD QUANTITY PER INCH	40
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.246 INCHES MINIMUM AND
	0.278 INCHES MAXIMUM
FASTENER LENGTH	0.296 INCHES MINIMUM AND
	0.328 INCHES MAXIMUM
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND
	45.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	130000 POUNDS PER SQUARE INCH
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.176 INCHES MINIMUM AND
	0.183 INCHES MAXIMUM
HEAD HEIGHT	0.108 INCHES MINIMUM AND
	0.112 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.094 INCHES NOMINAL
LOCKING FEATURE	PELLET THREADS
NONDEFINITIVE SPEC/STD DATA	6 TYPE
DEPARTURE FROM CITED DESIGNATOR	AS MOD BY LOCKING FEATURE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FFS86

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