5305-01-255-3066, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-255-3066

Federal Supply Class:
5305

National Item Identification Number:
012553066

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:

50253-2.40	52094	CALMARK CORPORATION
50253-2.40	61081	SCHROFF INC
52PSW00A0003	K7253	BOOKHAM TECHNOLOGY PLC

Techincal Specification:

FASTENER LENGTH	2.391 INCHES MINIMUM AND 2.400 INCHES MAXIMUM
HEAD DIAMETER	0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
HEAD HEIGHT	0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM-A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	40
WIDTH ACROSS FLATS	0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM

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