Comparison : Item # 530-0017, Micro Switch Assembly (BM65-F & BM65-R)
Item # 530-0044, Micro Switch Assembly (BM65-FHT & BM65-RHT)
Item # 530-0222, Micro Switch Assembly (BM65-FH & BM65-RH)
Item # 220-0017, Cast Aluminum Enclosure F, FH & FHT
Item # 280-0004, Gasket Ring