This is an o-ring meant for an ORFS (O-ring face seal) fitting. This seal sits on the back of the 37,82 mm (UN 2inch-12) male threads to ensure a tighter leak-free connection to a flat-bottomed female thread connection. The o-ring is made out of NBR (nitrile rubber) and is black colored. It is LABS-free and silicone-free.
ORL series
This series includes o-rings meant for ORFS (O-ring gace seal) fittings. They are made out of NBR (nitrile rubber).
Specifications
Connection size : UN 2-12
Internal diameter (mm) : 37.82
Material : NBR (nitrile rubber)
Color : Black
LABS-free : Yes
Silicone-free : Yes
![UN 2''-12 O-ring ORFS [100 Pieces]](https://www.coolgrittools.com/wp-content/uploads/2026/06/orl-37.e4ec9e9f_5e3960a1-7679-4523-8d87-4c36530f34a8.webp)




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