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used on 270 foot wmec coast guard vessels
od 21 ins, id 9.187 ins, thickness of flange is 1 in. plus 0.250 in. spigot, o/a lg studs included 10.250 ins, consists of 2 halves and packing gland, flange has 10 ea 0.938 in. dia drilled holes on 18.875 in. dia between centers for mounting to bulkhead
An assembly that may consist of sealing and retaining rings, housing components, packing cords, screw joints and the like. It is designed to seal a shaft log at the stern tube, thrust bearing, transmission or bulkhead.
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.