5305-01-270-3051, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-270-3051

Federal Supply Class:
5305

National Item Identification Number:
012703051

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:

203-4678501 ITEM 17	80064	NAVAL SHIP SYSTEMS COMMAND
211040230	53711	NAVAL SEA SYSTEMS COMMAND
556-6408040-39	53711	NAVAL SEA SYSTEMS COMMAND
518-4682916 ITEM 30	80064	NAVAL SHIP SYSTEMS COMMAND
60-15-4281	96169	ELECTRIC BOAT CORPORATION
596-7410251-80	D9182	ZF INDUSTRIEANTRIEBE WITTEN GMBH
FF-S-86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
M1222SN8C320NCLN	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-DTL-1222	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MILS1222TYII1/2 -13UNC-3AX1-1/4	D9182	ZF INDUSTRIEANTRIEBE WITTEN GMBH

Techincal Specification:

FASTENER LENGTH	1.250 INCHES NOMINAL
HEAD DIAMETER	0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
HEAD HEIGHT	0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL	NICKEL ALLOY 502 OR NICKEL ALLOY K-500 OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
NONDEFINITIVE SPEC/STD DATA	6 TYPE
SPECIAL FEATURES	SELF LOCKING
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.096 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
THREAD QUANTITY PER INCH	13
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS	0.375 INCHES NOMINAL

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