British Aircrew Oxygen Connector MK7A
Mk7A Stores Ref: 6D/2116 | Nato Stock No: 4730-99-220-3120
This conenctor uses a bayonet to mate with a Mk7 mask hose connector. The bayonet fitting means there is no disconenction by pulling on the hose, making it a suitable conenctor for PEC equipped aircraft, not for aircraft with fixed oxygen hoses.
The Mk7A connector is used on all PECs for oxygen masks and PECs for pressure jerkins.
Internal to the conenctor is a rubber sleeve which acts as the spring for the Mk7 mask hose connector, and also provides the seal between the two connectors.
All Mk7A connectors I have seen state the manufacturer as L.ADAMS LTD. LONDON.N.W10
Exhibits
Note how two different hooks / clips have been used. This could potentially be a RN vs RAF difference, or a later upgrade.
Mk7A conenctor example 1
This connector photographed is fited to a Mk8 PEC.
Mk7A conenctor example 2
This connector photographed is fited to a Mk1 PEC.
