Milton S-684-4 Male Tank Valve, 1/4 Inch MNPT, Standard Valve Core And Plastic Cap, Pack of 2

Milton S-684-4 Male Tank Valve, 1/4 Inch MNPT, Standard Valve Core And Plastic Cap, Pack of 2

• Milton S-684-4 is a 1/4 Inch MNPT male tank valve for filling air compressor vessels. It includes a standard valve core and plastic protective cap, supports up to 200 PSI, and measures about 1.5 Inch overall length with cap, making it a compact, leak-resistant solution for shop and fleet use.
• Features:
  • 1/4 Inch MNPT male thread mates directly to common compressor tank ports for quick installation
  • Includes standard valve core and plastic cap to help maintain seal integrity and keep contaminants out
  • Rated to 200 PSI for typical shop and portable compressor applications
  • Approximately 1.5 Inch overall length with cap for compact fit on crowded manifolds
  • Cap thread size .305-32 for consistent cap replacement when needed
• Specifications:
  • Manufacturer: Milton
  • Part Number: S-684-4
  • Thread / Connection: 1/4 Inch MNPT
  • Includes: Standard valve core; plastic protective cap
  • Maximum Pressure: 200 PSI
  • Overall Length (with cap): 1.5 Inch
  • Cap Thread: .305-32
  • Quantity: Pack of 2 identical valves
  • System Compatibility / Application: Designed for filling air vessels via compressor tanks; helps prevent back-leakage during inflation
  • Alternate / Cross Reference: 684-4 (dashless style used by some distributors)
• The male tank valve can also be referred to as 1/4 Inch MNPT tank valve, compressor tank valve, air vessel fill valve, protective cap tank valve, and Milton S-684-4 valve.

Milton manufactures pneumatic couplers, plugs, inflator gauges, and air system accessories for automotive, fleet, and industrial environments, emphasizing durable construction and reliable performance in daily service.

Q: Does S-684-4 include a valve core and cap?
A: Yes. The S-684-4 configuration includes a standard valve core and a plastic protective cap.

Q: What is the maximum working pressure?
A: The maximum air pressure rating is 200 PSI.

Q: How long is the valve with the cap installed?
A: The overall length is approximately 1.5 Inch with the cap installed.