With the introduction of Marco’s Thermoplastic Single and Double Row Closed Back Terminal Blocks, Marco has become one of the most relied upon sources of Military and Commercial Barrier-Type Terminal Blocks.

Military Terminal Blocks have the same construction features as commercial variety and are available in materials type GPT-30F per MIL-M-24519, color gray, and are designated to Military Specifications MIL-T-55164/C Class B. 

Commercial (UL-CSA) as well as Military approvals (MIL-T-55164/C) are held by all Marco Terminal Blocks

Military Series MIL-T-55164

• 37TB, 38TB, Class B
• 40TB, 41TB, Class B
• 37TB, 38TB, 39TB Class F
• 40TB, 41TB, 42TB Class F
• 3TB, 4TB, 6TB, 7TB, 8TB, 9TB Navy Class
• 10TB, 15TB, 16TB, 17TB, 25TB, 26TB Navy Class
• Military Marker Strips