GRACO 556540 - Black Trabon Msp Mounting Accessories & Spare Parts - O-Ring (Buna-N)

Standard nitrile rubber (NBR) O-ring designed as a replacement seal for MD Divider Valves in progressive lubrication systems. Provides reliable sealing performance in demanding industrial lubrication applications.

Specifications

• Material: NBR (Nitrile Butadiene Rubber)

Features

• NBR construction for chemical resistance
• Standard size for MD Divider Valves
• Replacement seal component
• Compatible with lubrication system pressures
• NBR construction for oil and grease compatibility
• Standard size for common MSP applications

Applications

• MD Divider Valve maintenance
• Progressive lubrication system repairs
• Industrial lubrication equipment service
• MSP lubrication system sealing
• Preventive maintenance
• System repair and overhaul

Compatible Equipment

• MD-2 Divider Valves (562656)
• MD-3 Divider Valves (562657)
• MD-4 Divider Valves (562658)
• MD-6 Divider Valves (562659)
• MD Divider Valves with Cycle Pin variants
• MSP lubrication systems

Related Parts

• 563555 - Cycle Indicator End Plug Assembly
• 557506 - Enclosure Plug
• 557507 - Enclosure Plug Gaskets
• 562656 - MD-2
• 562657 - MD-3
• 562658 - MD-4
• 562659 - MD-6

This is a spare part specifically for MD Divider Valves in progressive lubrication systems. NBR material provides good resistance to oils and lubricants. Listed as a standard spare part for MS/MH lubrication systems alongside synthetic O-ring alternative part 557721 Listed as spare part for MD Divider Valve systems, essential component for maintaining system integrity

Reference Manuals

• 339427 (Page 19)
• 340800 (Page 8)