5305-12-186-5294, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-12-186-5294

Federal Supply Class:
5305

National Item Identification Number:
121865294

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

5500770371	0141B	NAVANTIA, S.A., S.M.E.
5500770371	409BB	NAVANTIA - PROPULSION Y ENERGIAMOTORES - CARTAGENA
5500770371	D8266	MTU FRIEDRICHSHAFEN GMBH

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	4.0 MILLIMETERS NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	25.5 MILLIMETERS NOMINAL
EXTERNAL THREAD TOLERANCE CLASS	6 KLEIN G
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	37.5 MILLIMETERS NOMINAL
FIRST DIAMETER FROM HEAD	12.0 MILLIMETERS NOMINAL
HARDNESS RATING	280 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 370 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM OVERALL
HEAD DIAMETER	18.0 MILLIMETERS NOMINAL
HEAD HEIGHT	11.0 MILLIMETERS NOMINAL
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	DIN ISO898TEIL1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
III PURCHASE DESCRIPTION IDENTIFICATION	D8266-5500770371
MINIMUM TENSILE STRENGTH	1000 NEWTONS PER SQUARE MILLIMETER
NOMINAL THREAD DIAMETER	12.0 MILLIMETERS
SECOND DIAMETER FROM HEAD	9.9 MILLIMETERS NOMINAL
WIDTH ACROSS FLATS	10.0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	DBL8402 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE ZINC OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	12.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATOR	ISO M
THREAD PITCH IN MILLIMETERS	1.5

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