| ACR |
Altitude-compensating Regulator |
| AL |
Aluminum series cylinder prefix |
| BNC |
Bayonet connector |
| CAMI |
Civil Aerospace Medical Institute |
| CFF |
Composite Filament-Fiber |
| CFFC |
Composite Filament-Fiber Carbon |
| CG |
Center of Gravity |
| CIC |
Cylinder Intercoupler Kit |
| CMK |
Cylinder Mounting Kit |
| DIN |
Deutsch Industry Norm (Germany) |
| EDS |
Electronic Delivery System (Pulse-Demand™) |
| EDS-O2D1 |
Electronic Delivery System (Single-Place) |
| EDS-O2D2 |
Electronic Delivery System (Dual-Place) |
| EDS-EPS |
EDS-External Power Supply |
| EDS-STR |
EDS Stabilizer Regulator (Pneumatic) |
| EOS |
Emergency Oxygen System |
| GSE |
Ground Support Equipment |
| HPQD |
High Pressure Quick-Connect / Disconnect |
| IP |
Instrument Panel |
| KF |
Kevlar Fiber |
| MTBO |
Mean Time Between Overhaul |
| NRE |
Non-recurring Engineering |
| PCR |
Pneumatically-Controlled Regulator |
| PHODS |
Personal Helicopter Oxygen-Delivery System |
| RG |
Remote Gauge |
| RCV |
Remote-Controlled Valve |
| RCR |
Remote-Controlled Regulator |
| TA |
Transfiller Adapter (Trans-Adapter) |
| TR |
Transfiller |
| XCP |
Cross Country Pilot |
| XCR |
Cross Country Racer |
