Value Collection ZMSCTST016 Ptfe O-ring Dash 016 50-pack

Product Description

The VALUE COLLECTION ZMSCTST016 is a Dash 016 O-ring made from polytetrafluoroethylene (PTFE), a high-performance fluoropolymer seal material suited for demanding service conditions. This O-ring features a rectangular cross section with a 0.625-inch inside diameter, a 0.75-inch outside diameter, and a 0.047-inch thickness. A durometer hardness of 55 places it in the medium hardness range. The PTFE construction gives it a usable temperature range of -65 to 500 degrees F, making it a practical choice for high-heat or chemically aggressive environments where standard nitrile or EPDM seals fall short. Licensed tradespeople and maintenance professionals use this part in fluid and gas sealing applications across HVAC, plumbing, and industrial equipment.

This O-ring is appropriate for use in static sealing applications where chemical resistance and thermal stability are required. Typical install scenarios include valve stems, fittings, and threaded connections in systems handling refrigerants, solvents, fuels, or high-temperature fluids. The Dash 016 designation corresponds to a widely referenced AS568 O-ring standard size, allowing straightforward cross-referencing in the field. Each package contains 50 O-rings, supporting both single repairs and recurring service needs. These seals are not FDA approved and should not be used in food-contact applications.

Key Features

• PTFE construction withstands temperatures from -65 to 500 degrees F
• Dash 016 size: 0.625-inch ID, 0.75-inch OD, 0.047-inch thickness
• Medium durometer hardness rating of 55 for reliable static sealing
• Rectangular cross section for consistent groove fit
• Sold in a 50-piece package to support service stock needs
• Suitable for chemically aggressive environments where elastomeric seals fail

Compatibility

Designed as an OEM-style replacement or service seal for any application calling for an AS568 Dash 016 standard O-ring in PTFE material.

Installation Notes

PTFE O-rings should be installed by a qualified technician familiar with the system being serviced. Shut down and depressurize the system fully before replacing any seals. PTFE is not elastomeric and does not stretch like rubber; confirm groove dimensions match the specified ID, OD, and thickness before installation to avoid improper seating. Follow applicable codes such as IFGC or IPC depending on the system type.