seal assembly, vapor engine duct do not use cadmium plated tools on this item, c/o retainer 2 ea c.p.titanium per mil-t-8046 type 1 com b, washer 2 ea., nut 2 ea., scres 2 ea.; seal also required is under 5330-00-145-8781
Used on w/s: los angeles class ssn (688); sturgeon class ssn (637); virginia class submarine, ssn-774; seawolf class ssn; trident hull structure; level 1 / subsafe; moored training ship; marine hardxware & hull dors; submarine auxillary and miscellaneous systems. 0.879" outside diameter