5305-01-118-9593, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-118-9593

Federal Supply Class:
5305

National Item Identification Number:
011189593

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:

CA21070-4-8HS	29372	HOWMET GLOBAL FASTENING SYSTEMS INC.
GS520CK4-08	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
GS520CK4-08	29372	HOWMET GLOBAL FASTENING SYSTEMS INC.
GS520CK4-08	58998	FASTENER INNOVATION TECHNOLOGY, INC.

Techincal Specification:

COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH	1.187 INCHES MINIMUM AND 1.207 INCHES MAXIMUM
HEAD DIAMETER	0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SPECIAL FEATURES	THREADS TO BE DOUBLE LEAD
WIDTH ACROSS FLATS	0.1409 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.477 INCHES MINIMUM AND 0.636 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF

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