The MBU-12/P oxygen mask is currently being used by the U.S. Military. The shape of the mask provides excellent downward vision.  The low profile design brings the mask close to the face and provides excellent stability during high G maneuvers. Anti-roll webs at the nose seal prevent downward roll off. The inherent rigidity of the integrally bonded soft rubber faceseat to a polysulfone plastic hardshell allows adjustment to provide superior sealing during pressure breathing.

Please note: The MBU-12/P is used with pressure demand oxygen systems not constant flow oxygen systems found in general aviation cabin aircraft.

The advanced design of the combination-breathing valve provides greatly reduced exhalation resistance during pressure breathing, and a rolling diaphragm reduces the potential for valve sticking caused by residue accumulation. This unique combination valve meets or exceeds all performance requirements of MIL-V-27296.

The MBU-12/P oxygen mask meets or exceeds the requirements of the U.S. Military Specification MIL-M-87163.

Choosing a mask:

SIZES: Four mask sizes are available to assure proper fit and comfort.

3-PIN or Quick Disconnect:  Two oxygen mask connectors are available; Three-pin twist lock or Quick Disconnect. Choose Three-pin twist lock if you are going to use a CRU-60 adapter with an emergency oxygen bottle. Choose a quick disconnect fitting if you are connecting directly with the aircraft.

CX-4707:  This configuration of the mask is used if you have a CX-4708 helmet cord installed on your helmet. The CX-4707 cord is a communications cord that spirals down the mask and carries both the microphone and earphone circuits.

This cord ends with a U-174 plug that you plug into your aircraft. It is designed to plug in next to where you plug in your oxygen hose. You may need an adapter cord that converts the U-174 single plug to the P5568 two plug system if your aircraft has been converted to two communication jacks.

You will need to order a PA-12 amp if you are going to use the mask with a civilian VHF radio.

Additional parts you may need:

CRU-60 Oxygen Mask Connector

MBU-12/P PA-12 Amplifier

Adapter Cord TP120 to P5568 Adapter Cord

Oxygen Mask Fitting