GENTEX HIGH ALTITUDE OXYGEN MASKS
MBU-12/P Oxygen Mask - With CX-4707 Cord
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.
MBU-12P
The GENTEX Model MBU-12/P Oxygen Mask meets or exceeds the requirements of U.S. Air Force Specification MIL-M-87163.
The MBU-12/P mask is designed to replace the MBU-5/P and offers substantial improvement in comfort and efficiency when compared to the older mask. The MBU-
12/P features a gray silicone rubber faceseal integrally bonded to a high strength gray polysulfone plastic hardshell.
The shape of the MBU-12/P 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 integral faceseal/hardshell allows adjustment to provide superior sealing during pressure breathing. Four mask sizes are available to assure proper fit and comfort.
The unique design of the GENTEX developed combination breathing valve distinguishes the GENTEX Model of the MBU-12/P. Using concepts developed during
the space program, this valve offers greatly reduced exhalation resistance during pressure breathing. Additionally, the rolling diaphragm reduce the potential for valve
sticking caused by residue accumulation. The combination valve meets or exceed all performance requirements of MIL-V-27296.
MBU-20P
Gentex Respiratory Products offers a U.S. Air Force approved and
supportable Non-PBG MBU-20/P aircrew oxygen mask for non-pressure breathing applications. The Non-PBG MBU-20/P is a reduced cost variant of the COMBAT EDGE configured MBU-20/P. Reference T.O. 14P3-1-161, Change 29.
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Significant user and maintainer features that make the
Non-PBG MBU-20/P the 21st century performance mask of choice:
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The
Non-PBG MBU-20/P has all the benefits of the MBU-20/P in a Non-PBG configuration
• Five sizes available that “Plug & Play” and offer direct replacement for
MBU-12/P
• Increases range of fitting to the 97th percentile male aircrew member
down to the 3rd percentile female aircrew member
• Low profile for increased downward field of view
• Lower Inhalation and exhalation resistance
• Ejection windblast qualified to over 600 knots for superior retention and
function
• Advantages of the
Non-PBG MBU-20/P as a common mask:
• Significantly lowers logistic burden from maintaining multiple mask configurations and spares
• Reduce cost of maintaining, printing, and distributing technical orders for multiple configurations
• Standardized initial and recurring aircrew and life support technical
training
• Increased commonality, affordability and interoperability
• Fully supportable assembly with spare parts inventory readily available
