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120-62402-03

Brand Lomar Machine & Tool Co.	Pack Size 1.00	UOM EA	Supplier Part Number 120-62402-03	Product Weight 0.99 lbs

Product Questions & Answers 3

Product Questions & Answers

what exactly are piston packing rings used for in a hydraulic setup?

Question by: Lee P on Dec 21, 2025, 6:24 AM

Piston packing rings seal the piston inside a hydraulic cylinder, keeping fluid from bypassing the piston as pressure builds. Without a good seal there, you lose force and the cylinder won't extend or hold load the way it should. The T420 designation on these LOMAR rings refers to the specific packing style, which is built to maintain that seal under the pressure cycles a working hydraulic system puts it through.

Answer by: Customer Support on Dec 22, 2025, 4:45 PM

Reckon these'll fit my Lomar T420 piston? Just wanna be sure before I order.

Question by: Neil P on May 1, 2025, 7:07 AM

These packing rings are indeed the correct fit for a Lomar T420 piston.

Answer by: Customer Support on May 3, 2025, 6:09 AM

what are these 120-62402-03 rings actually for

Question by: Donna J on Jul 26, 2025, 10:32 AM

Piston packing rings are used as sealing elements on a piston, and this part is identified as LOMAR T420 piston packing rings. They are meant for piston sealing applications where that specific T420 packing ring style is required.

Answer by: Customer Support on Jul 28, 2025, 6:31 AM