Value Collection 0M284B8.4 Buna-n Round Cord Stock

Product Description

The VALUE COLLECTION 0M284B8.4 is a Buna-N (nitrile rubber) round cord stock supplied in a 100-foot standard coil. Buna-N cord stock is a dense, flexible elastomer material used to fabricate custom O-rings, seals, gaskets, and compression seals on the job or at the shop. It is cut to the required length and joined to form a continuous seal, making it a practical alternative to stocking a full range of O-ring sizes. HVAC technicians, plumbers, and industrial maintenance professionals use this material when a standard O-ring is unavailable or when a non-standard groove diameter is encountered during service.

This cord stock is suited for static and low-motion sealing applications involving oils, fuels, hydraulic fluids, and water. Typical uses include sealing refrigerant-side fittings, plumbing connections, pump housings, and fluid system components where Buna-N chemical compatibility is appropriate. The round cross-section seats cleanly in standard O-ring grooves. The 100-foot coil length provides ample material for multiple jobs or shop inventory.

Key Features

• Buna-N (nitrile rubber) material offers good resistance to petroleum oils, fuels, and water
• Round cross-section seats in standard O-ring grooves without modification
• 100-foot coil length allows field or shop cutting to any required dimension
• Eliminates the need to stock every individual O-ring size for common groove profiles
• Compatible with a wide range of static sealing applications across HVAC, plumbing, and industrial maintenance

Compatibility

Designed as a general-purpose round cord stock for fabricating custom O-rings and seals in applications requiring Buna-N elastomer material.

Installation Notes

Installation is typically performed by HVAC technicians, plumbers, or maintenance mechanics. Before replacing any seal or O-ring, isolate and depressurize the system in accordance with applicable codes, including IPC or IFGC requirements for plumbing and gas systems. Cut cord stock to the required circumference, add joint adhesive compatible with Buna-N material, and allow the bond to cure fully before pressurizing the system. Inspect the finished ring for uniform diameter and a clean, flush joint before seating in the groove.