Larsen Supply Co. 02-1521 No. 16 O-ring 2 Pack R-50

Product Description

The LARSEN SUPPLY CO., INC. 02-1521 is a Number 16 O-ring sold in a convenient 2-pack, carded for easy point-of-use storage. This standard elastomeric seal measures 3/8 inches outer diameter, 9/32 inches inner diameter, and 3/32 inches cross-section width, conforming to the R-50 sizing standard. O-rings in this class form a reliable static or dynamic fluid seal in plumbing valves, faucet cartridges, and general-purpose pipe fittings. Plumbers, pipefitters, and maintenance technicians use these seals during routine valve rebuilds, faucet repairs, and fixture replacements where a positive leak-free seat is required.

This O-ring is suited for residential and light commercial plumbing service applications. Typical install scenarios include faucet cartridge replacements, ball valve rebuilds, and supply stop repairs where the Number 16 cross-section is specified. The 2-pack carded format is practical for service trucks and counter stock, providing an immediate spare on every call without requiring bulk inventory.

Key Features

• Number 16 O-ring profile conforming to R-50 sizing standard
• Outer diameter: 3/8 inches; inner diameter: 9/32 inches; cross-section: 3/32 inches
• 2-pack carded format for easy retail display and service truck storage
• Package quantity of 6 cards per case supports counter and van stock
• Designed for static and dynamic sealing in plumbing valve and faucet applications

Compatibility

Designed as an OEM-style replacement seal for plumbing valves, faucet cartridges, and fittings requiring a Number 16 cross-section O-ring per R-50 sizing.

Installation Notes

Installation is typically performed by a licensed plumber or experienced maintenance technician. Shut off the water supply and relieve line pressure before disassembling any valve or faucet. Lubricate the O-ring with a water-compatible grease prior to seating to prevent tearing during assembly. Do not over-stretch the ring onto the seat, as deformation will compromise the seal.