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The OLYMPIA FAUCETS OP-490006 is a bonnet nut designed as a replacement component for compatible faucet assemblies. The bonnet nut serves as a threaded fastener that secures the packing or cartridge within the valve body, maintaining a watertight seal and allowing for controlled stem movement. This type of part is a common service item for licensed plumbers and experienced DIYers performing faucet repairs, cartridge replacements, or valve rebuilds. Replacing a worn or damaged bonnet nut restores proper valve function and prevents leaks at the packing area.
This part is suited for faucet repair and rebuild applications where the original bonnet nut has become damaged, corroded, or stripped during service. It is intended for use in residential plumbing systems as part of routine maintenance or repair work on compatible OLYMPIA FAUCETS valve bodies. Plumbers working on kitchen, bathroom, or utility faucets will encounter this type of component during standard cartridge or stem service calls.
Designed as an OEM-style replacement bonnet nut for compatible OLYMPIA FAUCETS faucet and valve assemblies. Verify fit against the original part number before installation.
Installation should be performed by a licensed plumber or qualified technician following local plumbing codes. Shut off the water supply and relieve line pressure before disassembling the faucet. Use an appropriately sized basin wrench or socket to seat the bonnet nut without over-tightening, which can crack the valve body. Inspect packing and cartridge condition while the valve is open and replace worn components as needed.
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