O-ring Boss® Adjustable Union

Product Options

Part Number	Male Thread	Male Thread Size	Material
6403-4	SAE O-ring boss	7/16"-20	Zinc Plated Steel
6403-6	SAE O-ring boss	9/16"-18	Zinc Plated Steel
6403-8	SAE O-ring boss	3/4"-16	Zinc Plated Steel
6403-10	SAE O-ring boss	7/8"-14	Zinc Plated Steel
6403-12	SAE O-ring boss	1-1/16"-12	Zinc Plated Steel
6403-16	SAE O-ring boss	1-5/16"-12	Zinc Plated Steel
6403-6-4	SAE O-ring boss	9/16”-18 7/16"-20	Zinc Plated Steel
6403-8-6	SAE O-ring boss	3/4”-16 9/16”-18	Zinc Plated Steel
6403-12-10	SAE O-ring boss	1 1/16”-12 7/8”-14	Zinc Plated Steel
6403-16-12	SAE O-ring boss	1 5/16”-12 1 1/16”-12	Zinc Plated Steel
6403-20	SAE O-ring boss	1 5/8”-12 1 5/8”-12	Zinc Plated Steel
6403-24	SAE O-ring boss	1 7/8”-12 1 7/8”-12	Zinc Plated Steel
6403-32	SAE O-ring boss	2 1/2”-12 2 1/2”-12	Zinc Plated Steel