O-ring size for 1/2" SS lock nut?

[daphatgrant]

I apologize if this is easy to find or commonly known but I'm having a hell of a time finding an answer.

What size o-ring do I need to fit in the o-ring groove in a 1/2" SS lock nut?

 

[BigFloppy]

how many u need.... Ive got a couple I can spare, pm me your address

 

[daphatgrant]

how many u need.... Ive got a couple I can spare, pm me your address

I truly appreciate it but I need quite a few. I'm in the process of building my brewing setup from the ground so I'd need a minimum of 10 but am planning on getting 14 to have a few extras. Thanks for the offer though .

 

[BigFloppy]

1/2 NPT - 13/16" ID x 1 1/16" OD

 

[daphatgrant]

1/2 NPT - 13/16" ID x 1 1/16" OD

Thanks! Appears to be a #211 o-ring.

 

[daphatgrant]

And a 5 pack is $1.21