Any of several processes in which both nitrogen and carbon are absorbed into the surface layers of a ferrous material at temperatures below the lower critical temperature and, by diffusion, create a concenteration gradient. Nitrocarburizing is performed p ...

This compound of nitrogen and oxygen is formed by the oxidation of nitric oxide (NO) which is produced by the combustion of solid fuels.

The products of all combustion processes formed by the combination of nitrogen and oxygen.

Nippon Kaiji Kyokai (Japanese Class Society)

Nippon Kaiji Kyokai. Japanese Classification Society

No Liner On Tailshaft

ACRONYM - non-lubricated compressor.

Netherlands (Flag)

National Labor Relations Board

Unit of free air flow rate. Normal cubic meter per hour. The air in the following conditions:1.013 bar(a) of pressure; 0 degrees Celsius of temperature and 0% of relative humidity .

National Marine Electronics Association

National Maritime Enhancement Institute.

National Marine Fisheries Service

National Maritime Resource Center.

Navigational and meteorological warning broadcast service

National nature reserve

Provision in a salvage agreement that money is not payable unless the property is salved in accordance with that accordance.

Area into which a boat can not go without tacking.

The air compressor continues to run, usually at full RPM, but no air is delivered because the inlet is either closed off or modified, not allowing inlet air to be trapped.

On a square-rigged ship, the area between the after end of the forecastle and the forward end of the booms where lines, blocks, and tackle were stored.