| A | Manufacturer's C of C |
|---|---|
| B | Maintenance, Repair & Overhaul Item |
| C | Commercial Off-The-Shelf Item |
| D | Test Report Rubber Products |
| E | Chemical/Physical Test Reports |
| F | Process Certification |
| G | FAR PAR QAP 33 |
| H | Mandatory Government PVT |
| I | 100% NDT Testing (CSI Safety Critical Item) |
| J | PPAP (Production Part Approval Process) |
| M | Raw Materical Certification |
| N | First Article Testing |
| O | Airworthiness Certification |
| P | PMA - Part Manufacture Approval |
| Q | Outside Service |
| R | DFAR's - Defense Federal Acquisition Regulations Supplement |
| S | Independant Lab Report |
| T | TSO Authorization - Technical Standard Order |
| U | Government Surplus |
| V | Supplier Surplus |
| X | Authorized Distributer |
| Y | Mercury Free Certification |
| Z | Airbus Certification |