Side view of a precision-machined steel lubrication coupling plug showcasing its outer profile and connection thread.
 Side view of a precision-machined steel lubrication coupling plug showcasing its outer profile and connection thread.  Side view of a precision-machined steel lubrication coupling plug showcasing its outer profile and connection thread.
 Fleet maintenance application showing the coupling plug mounted on a trailer line to receive lubricant from the main vehicle system.  Fleet maintenance application showing the coupling plug mounted on a trailer line to receive lubricant from the main vehicle system.
Automated industrial machinery showing a series of custom lubrication sockets with return lines plumbed into a progressive grease distribution block. Automated industrial machinery showing a series of custom lubrication sockets with return lines plumbed into a progressive grease distribution block.
A matched OEM lubrication quick disconnect set with a pressure-relief female socket and heavy-duty male plug. A matched OEM lubrication quick disconnect set with a pressure-relief female socket and heavy-duty male plug.

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Lubrication Coupling Plug | Central Grease System Quick Disconnect Nipple

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Automated Batch Inspection of OEM Grease Plugs at Fitsch Factory
Quality control specialists inspecting a bulk manufactured batch of custom-segmented OEM lubrication quick disconnect plugs.
  • 24 degree cone connector

  • Metric O-ring port

  • Straight

  • One wire braid hoses

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To establish seamless grease distribution across automated, multi-line vehicle setups or trailing industrial implements, structural consistency is key. Welcome to Fitsch, your specialized segmented manufacturer for industrial lubrication networks. Our premium OEM Central Lubrication Coupling Plugs are built specifically to operate in unison with return-flow coupling sockets, keeping secondary connected systems—such as trailers or heavy agricultural implements—optimally and continuously supplied with grease. 

Side view of a precision-machined steel lubrication coupling plug showcasing its outer profile and connection thread

Part No.

D

G

L

SK

FRI

CPM100BAR

55

M 10 x 1

52

955-001-621

100-225

Using unmatched tolerances across our segmented manufacturing network, Fitsch ensures every lubrication quick disconnect nipple provides an absolute, leak-free seat. Engineered with an M10 x 1 connection thread and a robust 55 mm profile diameter, these plugs withstand the intense pressure spikes commonly found in heavy-duty automated progressive divider blocks and centralized lubrication pump circuits. 

Superior Corrosion Shielding & B2B Sourcing Advantages

Fitsch eliminates early wear down in challenging environments through rigorous raw material selection and modern finishing procedures: 

  • Ecologically Friendly Armor: Built with premium high-tensile steel and treated with a modern, Chrome-VI free galvanized finish for superior resistance against chemical washdowns, mud, and road salt. 

  • Brass Internal Seats: Fitted with internal brass interfaces to reduce frictional drag, maintain valve seating shape, and ensure smooth connection/disconnection over thousands of duty cycles. 

  • Optimized Vehicle Linking: Custom-tailored to provide seamless integration on the implement or trailer side, facilitating flawless modular extensions of your machinery's automated grease lines. 

Streamline your machinery assembly lines, reduce procurement overhead, and enforce cleaner grease transfer. Contact Fitsch's engineering team today for specialized quotes on our bulk-manufactured central lubrication component families.

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ABOUT FITSCH

Fitsch has been in the business of hydraulic tube fittings, hydraulic adapters, hose fittings, hydraulic flanges, industrial fittings and hydraulic accessories for over 20 years, offering all our customer competitive products and supplies from our local industry manufacturers union.    
 

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   No.133-3 Anjiexi Road, Sanqishi Town, Yuyao 315412, China
   +86-13777243045
   info@fitsch.cn

 
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