Part Number: 139-578-007 (Microcircuit) Part Number: 139578-01 (No description) Part Number: 139578-1 (Indicator position) Part Number: 13958 (Insert) Part Number: 13958039 (9176) Part Number: 13958044 (No description) Part Number: 13958058 (No description) Part Number: 13958064 (No description) Part Number: 13958067 (No description) Part Number: 13958087 (No description) Part Number: 139581 (Housing) Part Number: 139581-0001 (Spring stl) Part Number: 139581-0002 (Spring) Part Number: 13958109 (New in stock)