4720-12-171-1837 HOSE,AIR DUCT Index 5305-12-171-1894 SCREW,SHOULDER

National Stock Number:
5305-12-171-1877

Federal Supply Class:
5305

National Item Identification Number:
121711877

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
3469901104D8046DAIMLER AG
81.90405-0164D3273MAN TRUCK & BUS AG
81.90405.0164D3273MAN TRUCK & BUS AG
81904050164D3273MAN TRUCK & BUS AG


Techincal Specification:
EXTENDED WASHER DIAMETER29.0 MILLIMETERS NOMINAL
EXTENDED WASHER THICKNESS4.0 MILLIMETERS NOMINAL
EXTERNAL THREAD TOLERANCE CLASS6 KELIN G
FASTENER LENGTH65.0 MILLIMETERS NOMINAL
HARDNESS RATING280.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM OVERALL AND 370.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM OVERALL
HEAD HEIGHT14.5 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONDIN ISO898TEIL1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER16.0 MILLIMETERS
WIDTH BETWEEN FLATS22.0 MILLIMETERS NOMINAL
STRENGTH GRADE DESIGNATION10.9
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDBL8451.21 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH30.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORISO M
THREAD PITCH IN MILLIMETERS1.5


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