4910010522811
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4910-01-052-2811 Specification Set by the OEM (see RNCC code 3)
lever operated chuck, capacity 230 in. to 11/16 in., 225 rpm chuck speed, 5800 rpm spindle speed, grinds valve heads to 6 in. dia, BUILT-In wet grinding, 1/2 hp motor resilient mounted, includes one each of the following: no. 176 wheel for valves, no. 81 wheel, valve ends, no. 649 dressing attachment, no. 609 valve end attachment, no. 604 hex wrench, no. 605 wrench, no. 672a rocker arm attachment, no. 250 gal grinding oil, no. 641 plastic cover, no. 644 valve service cabinet, no. 1725bb valve seat grinder set and no. 1757 metal box
Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM
Identification Item Identification Guide (IIG) and Item Name Code (INC)
Definition Definition of approved item name (AIN): "GRINDING MACHINE,VALVE SEAT,ELEC"
A motor driven grinding machine that utilizes an abrasive wheel, designed for precision grinding and refinishing of internal combustion engine valve seats. It consists essentially of a base, upright and grinding supports, work holder, electric motor(s), spindle(s), grinding head(s), gage(s), and any necessary accessories such as diamond dressers and abrasive wheel sets. It usually has a coolant system for wet grinding and it may be portable (disassembled in container base) for ease of transportation. Excludes grinding kit, valve seat, electric.
4910-01-052-2811 Material Hazmat, Precious Metals, Criticality, Enviroment, and ESD
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Identification Codes
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.
