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pump unit centrifugal part number 2 1/2 x 4 ccly onboard 378 ft whec coast guard vessels
type 221; split seal assembly; may be installed on a unworn shaft outside the stuffing box; designed for shaft size 1.500 inch o.d., max gland diameter 5.000in.; gland length 2.000in.; materials of gland and rotating housing 316 stainless steel; O-Rings viton; rotary face carbon steel; stationary face alumina ceramic; temperature rating up to 250 degrees fahrenheit; pressure rating 150 pisg; speed rating 3600 rpm
A combination of items used in sealing various rotary shaft equipment. It may include items such as bellows, disk, drive ring, flexible diaphragm, mating ring, o-ring, retainer, seat, sleeve, washer and the like. Excludes seal, plain encased.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
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.