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The VALUE COLLECTION ZMSCTST011 is a PTFE (polytetrafluoroethylene) O-ring designed for static and dynamic sealing applications across plumbing, HVAC, chemical, and industrial systems. Manufactured to Dash 011 sizing, it measures 0.327 inches inside diameter and 0.433 inches outside diameter, with a rectangular cross section and a thickness of 0.048 inches. The durometer hardness rating of 55 (medium) provides reliable compression sealing without excessive deformation under load. PTFE construction delivers broad chemical resistance and an operating temperature range of -65 to 500 degrees F, making it suitable for high-temperature and chemically aggressive service environments. Licensed technicians and tradespeople working with fluid handling or refrigerant systems typically specify this ring where standard nitrile or EPDM materials fall short.
This O-ring fits sealing applications in residential and commercial systems where dimensional precision and chemical compatibility are critical. The Dash 011 standard sizing makes it a straightforward replacement or repair component in valve bodies, fittings, flanges, and manifold assemblies. It is commonly installed by plumbers, HVAC technicians, and industrial maintenance professionals working on fuel, chemical, or high-temperature fluid circuits. The rectangular cross section provides increased sealing surface contact compared to standard round-section rings of equivalent dash size. Sold in packages of 50 with a minimum order quantity of 1.
Designed as an OEM-style replacement or service component for any valve, fitting, or manifold assembly specifying a Dash 011 O-ring in PTFE material with a rectangular cross section.
Installation should be performed by a qualified tradesperson familiar with the sealing requirements of the specific system. Depressurize and isolate the assembly completely before removing the existing O-ring and inspect the gland for scoring or debris. PTFE O-rings require no lubrication in most applications, but verify compatibility with system media before applying any sealant or lubricant. Follow applicable codes such as the IPC or IFGC for piping system maintenance when working on fuel or fluid circuits.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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