Skip to the beginning of the images gallery

20 BUNA O-RING

Description & Features

Designed for use with 1-1/4 inch tube OD Male O-Ring Boss (MORB) and SAE port connections, the 20 Buna O-Ring provides a reliable hydraulic seal in demanding industrial environments. Manufactured from 90 durometer NBR (Buna-N) compound, it offers solid resistance to petroleum-based hydraulic fluids, making it well-suited for standard hydraulic circuit sealing applications.

With an inner diameter of 1.475 inches and an overall length of 0.118 inches, this O-ring is sized to seat precisely within MORB/SAE port fittings. The 90 durometer rating indicates a firm, compression-resistant seal material that maintains its shape under pressure cycling. Part of the Brennan Industries 4000 Series, it is a direct-fit replacement for compatible port connections of this size.

SKU: 4000-20

Supplier Part Number (MPN): 4000-20

Specifications

Brand BRENNAN	Color Black	Dash Size 20	Dimensions 0.118 in W	Durometer 90	Inside Diameter 1.476 in	Material Nitrile	Series SAE-J1926-ORB-O-ring Series	Suitable For Use With 1-1/4 in Tube OD ORB

Product Questions & Answers (1)

Question by: Peggy F on May 10, 2025, 12:08 PM

Will this o-ring hold up to typical hydraulic fluid?

Answer by: Customer Support on May 12, 2025, 6:36 AM

Being made from 90 durometer NBR (Buna-N) compound, it's well-suited for petroleum-based hydraulic fluids commonly found in standard hydraulic circuits.