See if this is the correct part:
https://www.amazon.com/Shark-Genuine-Navigator-Lift-Away-Nozzle/dp/B0143J5AW6/ref=sr_1_11?gclid=Cj0KCQjw0IDtBRC6ARIsAIA5gWsUSQS75ctMK3j-2DESMtwrXMZsBSmMVVPOGXNqFQIk5bYkRwq9ROgaAoY1EALw_wcB&hvadid=177574456691&hvdev=c&hvlocphy=9028548&hvnetw=g&hvpos=1t1&hvqmt=b&hvrand=798181397944095894&hvtargid=kwd-23756571738&hydadcr=25494_9900218&keywords=shark+vacuum+navigator+parts&qid=1570805627&sr=8-11