5305-01-302-5219, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-302-5219

Federal Supply Class:
5305

National Item Identification Number:
013025219

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:

1/2-13UNC-3A X 2 1/2 INCHES	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
1/2-13UNC-3A X 2 1/2 INCHES	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
1/2-13UNC-3A X 2 1/2 INCHESL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
FF-S-86 TYPE VIL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
FF-S-86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
FF-S-86 TYPE VI	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
FF-S-86L1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
QQ-N-281 GRADE 400 CLASS AL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
QQ-N-281 GRADE 400 CLASS A	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	13
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	2.500 INCHES NOMINAL
FASTENER LENGTH	2.500 INCHES NOMINAL
MATERIAL	NICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
HEAD STYLE	HEXAGON
HEAD HEIGHT	0.642 INCHES MINIMUM AND
	0.656 INCHES MAXIMUM
WIDTH BETWEEN FLATS	2.500 INCHES NOMINAL
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.375 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA	VI TYPE
DEPARTURE FROM CITED DOCUMENT	MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
DEPARTURE FROM CITED DESIGNATOR	QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
CRITICALITY CODE JUSTIFICATION	ZZZW
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FF-S-86

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