NEW Hubbell Kellems 3/4” NPT .540” – .730” Dia. Range Strain Relief 73031203A NEW Hubbell Kellems 3/4” NPT. 540” -. 730” Dia. Range Strain Relief 73031203A. Thread Size 3/4” NPT. 2, Class II Div. 1 & 2, Class III Div. 1 & 2 N.E.C. Material - Mounting Hardware Locknut or Tapped Hole. byJuly 3, 2026