USA-BOPS provides replacement Seal Kits to fit all Hydril GK Annular Blowout Preventers.

USA-BOPS' Seal Kits are available both as individual Seals and as complete Kits. A

USA-BOPS also offers the Piston Indicator Seal, which is used on old style GK Annular Blowout Preventers to check the location of the piston. Newer model GK Annular Blowout Preventers do not require this seal.

Series	Head Gasket Seal	Upper Piston Seal	Piston Head Seal	Lower Piston Seal	Complete Seal Kit	Piston Indicator Seal
6x3M	63-31602	63-31603	63-31604	63-15614	63-50683	100-29644
6x5M	65-30690	65-30689	65-30688	65-30705	65-50684	100-29644
8x3M	83-32868	83-32870	83-32871	83-32869	83-50685	100-29644
8x5M	85-33508	105-32599	123-30735	65-30689	85-50686	100-29644
10x3M	103-31809	103-31808	103-31807	103--31604	105-50687	100-29644
10x5M	105-31402	105-31403	123-30736	105-32599	105-50688	100-29644
12x3M	123-30738	123-30736	123-30737	123-30735	123-50689	100-29644
13-5/8x5M	135-38150	135-38151	135-38152	135-38165	135-50690	100-29644
13-5/8x5M Lactched Head	123-31738	135-38151	135-38152	135-38165	135-50691*	100-29644
Qty.Required	1	2	2	2	2	N/A

To complete the Seal Kit for a 13-5/8x5M Latched Head GK Annular Blowout Preventer, (1) Part #202-37381 Head Seal is also required.

USA-BOPS also offers a complete line of "GK" Packing Units.

HYDRIL is a registered trademark of The Hydril Company.

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