The 1-172131-1 is a connector housing produced with natural Nylon. This thermoplastic material offers good wear resistance, is lightweight, and non-flammable. Due to the hygroscopic nature of the resin and the presence of heat stabilizers, the housing's color may naturally vary from white to yellow or green. This discoloration is a normal phenomenon and has been validated to not affect the form, fit, or function of the product. It is suitable for applications like household appliances where high safety performance is essential.