Value Collection BD-C30594 O-ring 12 in Id Nbr 50-pack

Product Description

The VALUE COLLECTION BD-C30594 is a nitrile butadiene rubber (NBR) O-ring with a 12-inch inside diameter and a 3-inch cross-section thickness. It features a round cross-section profile and a Shore A durometer rating of 70, indicating a firm yet flexible seal suitable for moderate-pressure applications. NBR compound provides solid resistance to petroleum-based fluids, hydraulic oils, and water, making this O-ring a dependable choice for fluid-sealing tasks in mechanical and industrial systems. Licensed plumbers, HVAC technicians, and industrial maintenance trades commonly install O-rings of this size in large-diameter piping assemblies, flanged connections, and pump housings.

This O-ring is suited for residential and commercial applications where large-bore sealing is required. Typical install scenarios include large pump volutes, tank access covers, valve bonnets, and industrial manifold connections. The NBR material performs across a broad fluid-compatibility range, covering water, oils, and many common refrigerants. This SKU is sold in a package quantity of 50 units, making it practical for shops, service fleets, or contractors who stock seals in bulk for recurring maintenance work.

Key Features

• 12-inch inside diameter for large-bore sealing applications
• 3-inch cross-section thickness provides robust compression sealing
• Nitrile butadiene rubber (NBR) compound resists petroleum oils, hydraulic fluids, and water
• Shore A 70 durometer rating balances flexibility with compression resistance
• Round cross-section profile for standard O-ring groove fitment
• Package quantity of 50 units supports bulk stocking and service fleet use

Compatibility

Designed as an OEM-style replacement or maintenance seal for large-diameter mechanical assemblies requiring a 12-inch ID, 3-inch thick NBR O-ring with a round cross section and Shore A 70 durometer.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or industrial maintenance technicians. Before servicing any sealed assembly, depressurize the system completely and isolate all fluid supply lines. Clean the O-ring groove thoroughly and inspect for corrosion or damage before seating the new seal. Do not use petroleum-based lubricants with fluids that may degrade the NBR compound; consult the system manufacturer for approved assembly lubricants.