  Specifications Base Part Number: 4110-725-XXX-XX-X Refer to Sheet 2 of 2 for breakdown of P/N. Dimensions: (A) Height: 5.5” (B) Width 4.5” (C) Weight: 1.2 Lbs Description: The Aerox quick donning diluter-demand oxygen mask is equipped with oro-nasal carbon fiber face piece, a maskmounted diluter-demand regulator, a electret microphone, and an inflatable head harness. The inflatable harness that allows donning with one hand in less then 5 seconds, when used with Aerox 4110-155 stowage cup. Various connectors are available to fit most built-in oxygen systems. The diluter-demand oxygen mask is intended to be used by qualified crewmembers to an altitude of 40,000 feet (MSL) Approved to TSO-C78a and TSO-C89a. Head Harness: Inflatable Quick Comfort Certified Altitude: 40,000 Feet Max (MSL) Microphone Plug: PJ068 Oxygen System Requirements: 1. Aviation Oxygen per MIL-O-27210 2. Aerox recommends the diluter demand oxygen mask be used with 4110-155 stowage cup. Supply Press Range: 55 to 70 Psi * (0.37 to 0.48 Mpa) 3. Operating Temp Range: +20 0 to +1200 F ** (-290 to +490C) 4. Relative Humidity: 5 to 95 percent 5. Overhaul: Aerox recommends every 3 years. * A minimum oxygen flow of 100 liters per minute (NTPD) at 55 to 70 Psi must be supplied to the mask. ** If the aircraft is to be exposed to extreme cold weather for a extended period the crew

  Build your Mask 1 2 3 4 Standard prefix for the Crew Mask, P/N 4110-725 Head Harness Size Inlet Hose Length Connection Type Standard Series Part Number Head Harness Size -001 Small (Special Order Item) -002 Medium (Std Stocked Item) -003 Large (Special Order Item) -01 Inlet hose 36 inches -02 Inlet hose 48 inches -03 Inlet hose 60 inches