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About This Item

 

Full Description

This specification covers the requirements for one grade of a synthetic base helicopter transmission system lubricating oil, which has a nominal viscosity of 9 mmå_/s at 100 å¡C and which is typically made with neopentyl polyol ester base stocks. This oil is identified by NATO Code Number O-165.
 

Amendments, rulings, supplements, and errata

  1. MIL MIL-PRF-32538 Notice 1 - Validation 1


    Lubricating Oil, Helicopter Transmission System, Synthetic Base, NATO Code Number: O-165