We don't have synonyms for basnet yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are basket, basset and bastet.
(n) :
Archaic form of bascinet. [A light helmet, typically with a high, pointed skull, either open-faced (in early models) or made with a visor (later models).]
(n) :
Archaic form of bascinet. [A light helmet, typically with a high, pointed skull, either open-faced (in early models) or made with a visor (later models).]