8492AM Bottom Manifold Gasket for Halkey Roberts 840 Manual Inflator and V85000 Auto Inflator.
The 8492AM Bottom Manifold Gasket can be bought individually or in a multi pack. You can find the multi pack listing here.
Click here for information on the 840 Inflator.
Anyone checking and fitting this part needs to have good technical knowledge of the product. This is typically a trade part used by lifejacket service stations and larger commercial users who have internal servicing.
The bottom manifold gasket sits between the inflator op head and the bladder.