Questions about Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
What does federal supply class 2940 cover?
Federal supply class 2940 covers engine air and oil filters, strainers, and cleaners for nonaircraft engines. Items filed here include fluid filter elements and fluid filters.
How is a part in federal supply class 2940 identified?
A filter element is matched to a specific housing, so the NSN and the part numbers cross-referenced to it are the dependable way to confirm fit. Each item in the class has its own National Stock Number (NSN) record, listed above.