Value Collection BDNA-9376 O-ring 36in Id 42in Od Nbr

Product Description

The VALUE COLLECTION BDNA-9376 is a large-diameter nitrile butadiene rubber (NBR) o-ring with a round cross section, designed for static and dynamic sealing applications in fluid and pneumatic systems. It measures 36 inches inside diameter, 42 inches outside diameter, and 3 inches thick. NBR is a synthetic rubber compound well suited for use with petroleum-based oils, fuels, and hydraulic fluids across a wide range of service temperatures. Licensed tradespeople and maintenance professionals install this o-ring where a reliable, compressible seal is required between mating surfaces or within groove-seated assemblies.

This o-ring is used in large-bore industrial, plumbing, and mechanical sealing applications where a metric-dimensioned NBR ring is specified. Typical install scenarios include pipe flanges, tank lids, pump housings, valve bonnets, and other large-diameter gasketing points. The round cross section allows even compression across the sealing groove, making it a standard choice for both replacement and new-installation sealing work in commercial and industrial settings.

Key Features

• 36 inches inside diameter and 42 inches outside diameter for large-bore sealing applications
• 3-inch cross-section thickness provides substantial sealing surface and compression range
• Nitrile butadiene rubber (NBR) construction resists petroleum oils, fuels, and hydraulic fluids
• Round cross section seats evenly in standard o-ring grooves
• Metric-dimensioned geometry suitable for metric-spec groove assemblies

Compatibility

Designed as a general-purpose replacement or new-install o-ring for large-diameter sealing grooves requiring a 36-inch ID, 42-inch OD, 3-inch thick NBR round cross-section ring in fluid, pneumatic, or mechanical sealing assemblies.

Installation Notes

Installation should be performed by a qualified mechanic, pipefitter, or maintenance technician. Depressurize and drain the system fully before disassembling any sealed joint or housing. Clean the groove and mating surfaces and inspect for damage before seating the o-ring. Avoid twisting or pinching the ring during installation; use an approved rubber-compatible lubricant to ease seating and reduce the risk of tearing.