4320011785389
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4320-01-178-5389 Specification Set by the OEM (see RNCC code 3)
truck 2-1/2 ton pccn C742Aa
iron casting; min porosity test of 2500 psi; machined dim:7.750 in.lg; 2.620 in.h; 4.340 in.w
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): "VALVE HEAD,HYDRAULIC MOTOR-PUMP"
A rigid item of various shapes. The internal surface is machined and ported to form part of the valve. The external surface contains the ports. It has provisions for attachment to the housing of a pump or motor. See also valve plate, hydraulic motor-pump.
4320-01-178-5389 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.
