Pipe Thread Acronym Definitions | Pipe Thread Standards
https://www.petersenproducts.com/pipe-specs/pipe-threading-standards_
WebFPT, or FNPT, or NPT(F): Female Pipe Thread (interchangeable with NPT) FIP: Female Iron Pipe (interchangeable with NPT) MPT, MNPT or NPT(M): Male Pipe Thread (interchangeable with NPT) MIP: Male Iron Pipe (interchangeable with NPT) NPTF: National (American Dryseal)) Pipe Thread, Fuel, for leak-free seal without thread sealant
DA: 87 PA: 61 MOZ Rank: 47