What type of lug is characterized by small pegs and is usually found on older fire hose couplings?

The type of lug characterized by small pegs and commonly found on older fire hose couplings is referred to as pin lugs. These lugs have distinct small projections or pegs that engage with corresponding holes on the coupling, allowing for a secure connection. Pin lugs are more prevalent in older fire hose designs, whereas modern hoses often utilize other types of lugs that might provide improved ergonomics or connection reliability. Understanding the design of pin lugs is essential for fire service personnel when dealing with older equipment, ensuring compatibility and safety during operations.