Larsen Supply 02-1579 O-ring R-76 2 Pack 3/16x5/16x1/16

Product Description

The LARSEN SUPPLY CO., INC. 02-1579 is a Number 3 R-76 O-ring sold in a 2-pack carded format, sized at 3/16 x 5/16 x 1/16 inches. O-rings of this type create a reliable compression seal at threaded fittings, valve stems, and port connections in plumbing and fluid-handling systems. The R-76 designation identifies the cross-sectional profile and compound classification, allowing technicians to match the correct seal for the application. The compact dimensions make this an everyday stock item for service kits, repair calls, and preventive maintenance work on residential and light commercial equipment.

This O-ring is suited for use in plumbing fittings, valves, faucets, and related fluid system components where a small-diameter compression seal is required. Plumbers and HVAC service technicians commonly carry assorted O-ring sizes on the truck to address leaks at valve packing, supply line connections, and cartridge seats without a return trip for parts. The carded 2-pack format is practical for counter service or van stock replenishment.

Key Features

• R-76 compound O-ring rated for standard plumbing and fluid-handling service
• Sized at 3/16 x 5/16 x 1/16 inches for precise fitment in small-diameter ports and fittings
• 2-pack carded format for convenient service van stocking or point-of-sale display
• Uniform cross-section supports consistent compression seal at installation

Compatibility

Designed as an OEM-style replacement O-ring for plumbing valves, faucet cartridges, and small-diameter fittings requiring a Number 3 R-76 profile seal.

Installation Notes

Shut off the water supply and depressurize the line before removing any fitting or valve component. A licensed plumber should perform installations where code requires it. Lightly lubricate the O-ring with a compatible plumber's grease before seating to prevent tearing during assembly. Do not overtighten the fitting, as excess compression can deform the O-ring and cause premature failure.