Value Collection ZMSCH2X7 O-ring 7in Id 11in Od Nbr 100-pack

Product Description

The VALUE COLLECTION ZMSCH2X7 is a Buna-N nitrile butadiene rubber O-ring with a round cross section, sized at 7 inches inside diameter, 11 inches outside diameter, and 2 inches thick. Buna-N is the most widely used O-ring elastomer in the trade, valued for its excellent resistance to petroleum-based fluids and its reliable compression set performance. The material rates at Shore 70 hardness and handles a working temperature range of -40 degrees F to 250 degrees F. Plumbers, hydraulic technicians, and industrial maintenance professionals install this O-ring in fluid and pneumatic sealing applications where petroleum-product exposure is a regular service condition.

This O-ring is suited for use in residential and commercial plumbing, hydraulic systems, fuel-handling equipment, and general industrial assemblies where a large-diameter round-section seal is required. Its petroleum compatibility makes it a common choice for sealing flanges, pump housings, and valve bodies in systems carrying oils, fuels, and similar media. The 100-piece package quantity supports shop stock, bulk service operations, and maintenance departments that replace seals on a recurring basis.

Key Features

• Buna-N (nitrile butadiene rubber) construction with excellent resistance to petroleum products
• Round cross section for consistent compression and reliable sealing performance
• Shore 70 hardness rating provides good tear and abrasion resistance
• Wide temperature range: -40 degrees F to 250 degrees F
• Meets SAE and MIL-Spec standards
• 100-piece package quantity supports bulk service and shop stock needs

Compatibility

Compatible with petroleum products and suitable for use in hydraulic, fuel-handling, plumbing, and general industrial sealing applications requiring a 7-inch ID round-section O-ring. Not FDA approved. Store away from direct sunlight, ozone sources, and electrical equipment that may generate ozone.

Installation Notes

O-ring installation on large-diameter flanges and pump housings should be performed by a qualified plumber, hydraulic technician, or industrial mechanic. Depressurize and drain the system completely before removing the old seal. Inspect the seating groove for scoring, corrosion, or debris before seating the new O-ring, and avoid twisting the ring during installation. Do not expose the installed O-ring to solvents, ozone-generating equipment, or fluids outside its rated compatibility range.