60mm to 40mm NATO gas mask adapter

60mm to 40mm NATO Gas Mask Adapter

Got a mask with a 60mm thread? This adapter bridges the gap to modern compatibility by converting a 60mm inlet to the standard 40mm NATO thread (Rd 40x1/7"). Perfect for turning Cold War oddities into usable gear.

• Converts 60mm thread to 40mm NATO
• Secure, airtight fit—no leaks, no play
• Use modern filters with vintage masks
• Great for collectors, preppers, and reenactors

Modern utility meets old-school surplus.