5306-01-512-2121, BOLT,MACHINE

4320-01-512-2122 SEAL ASSEMBLY,SHAFT,SPRING LOADE

National Stock Number:
5306-01-512-2121

Federal Supply Class:
5306

National Item Identification Number:
015122121

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Manufacturer Information:

3535858C1	338X5	ND DEFENSE LLC
3535858C1	89346	NAVISTAR INTL CORP TRUCK BR OHIO PLANT
ESP-BM-3.101-GS	338X5	ND DEFENSE LLC
ESP-BM-3.221-NPP	338X5	ND DEFENSE LLC

Techincal Specification:

EXTENDED WASHER DIAMETER	26.6 MILLIMETERS MAXIMUM
EXTERNAL THREAD TOLERANCE CLASS	6G
FASTENER LENGTH	40.0 MILLIMETERS NOMINAL
HEAD HEIGHT	11.8 MILLIMETERS MAXIMUM
HEAD STYLE	CHAMFER FLANGE
MATERIAL DOCUMENT AND CLASSIFICATION	CEMS A-31, CLASS 10.9 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL PROPERTY CLASS 10.9 OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	BOLT,HEX FLG HD METRIC M12-1.7
PROPRIETARY CHARACTERISTICS	PACS
NOMINAL THREAD DIAMETER	12.0 MILLIMETERS
WIDTH BETWEEN FLATS	17.5 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	TMS-4518, TYPE I MFR REF ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	ZINC AND ALUMINUM OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	30.0 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATOR	M
THREAD PITCH IN MILLIMETERS	1.7

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