Which NSTM number is associated with hydraulic oil?

The correct choice is associated with NSTM 245, which specifically addresses hydraulic systems and the maintenance and usage of hydraulic oil. This particular NSTM outlines procedures, specifications, and requirements for hydraulic fluids used within various systems on naval vessels. Understanding the proper handling and characteristics of hydraulic oil is crucial for ensuring the efficient operation and safety of hydraulic systems, which are integral for precise control and operation of machinery and equipment on-board.

Each NSTM serves a unique purpose; for instance, NSTM 240 focuses on lubricating oils, while NSTM 250 deals with fuel oil systems. Familiarity with these NSTM numbers helps technicians effectively reference operational and maintenance guidelines relevant to specific types of fluids in naval applications. This proficiency ensures personnel can maintain compliance with standards and operational readiness within naval operations.