| 2501-1-510 | Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2501-2-291 | Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2501-2-292 | Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2501-2-561 | Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2501-2-562 | Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2501-2-565 | Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2501-2-573 | Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2501-4-023 | Outline Switch Panel | Rockwell Collins | | 56 | Structures | PMA |
| 2511010-6 | Left number 4 Right Rear Window | — | — | 56 | Structures | OEM |
| 2511010-6 | Left number 4 Right Rear Window | — | — | 56 | Structures | OEM |
| 251411-1 | Beechcraft King Air Cabin Window - Inner Outboard (Green . 187 INCH) | — | | 56 | Structures | OEM |
| 251411-1 | Beechcraft King Air Cabin Window - Inner Outboard (Green . 187 INCH) | — | | 56 | Structures | OEM |
| 2516-1-1 | 3.8 inch Color Display Switch Panel | Rockwell Collins | — | 56 | Structures | PMA |
| 2517-1-1 | Headphone Jack Panel | Rockwell Collins | — | 56 | Structures | PMA |
| 2519047-1 | window | other | — | 56 | Structures | OEM |
| 252.250 | Left Front Pilot Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 252.375 | Left Front Pilot Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 2521626702 | SEAL | — | | 56 | unknown | OEM |
| 2527400-50 | Equip & Furn-Windscreen Left Hand | — | | 56 | Structures | OEM |
| 2527400-50 | Equip & Furn-Windscreen Left Hand | — | | 56 | Structures | OEM |
| 2527400-53 | Equip & Furn-Windscreen Right Hand | — | | 56 | Structures | OEM |
| 2527400-53 | Equip & Furn-Windscreen Right Hand | — | | 56 | Structures | OEM |
| 253.250 | Right Front Cabin Door Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 253.375 | Right Front Cabin Door Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 2531-051-01-03 | Windscreen | B/E Aerospace Inc, Aircraft Modular Products | | 56 | Structures | PMA |
| 254 | Left center window -openable | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 254.250 | Left Center Window - Openable | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 25417-00 | Moulding-Window Rear Left | Premier Aerospace Services & Technology, Inc. | | 56 | Structures | PMA |
| 25496-02 | Center window - left - outer | Aviation Enterprises | | 56 | Structures | PMA |
| 25496-03 | Center window - right - outer | Aviation Enterprises | | 56 | Structures | PMA |
| 25496-04 | Center window - left or right - inner - use with part number 769 & 770 | Aviation Enterprises | | 56 | Structures | PMA |
| 25497-02 | Rear window - left - outer | Aviation Enterprises | | 56 | Structures | PMA |
| 25497-03 | Rear window - right - outer | Aviation Enterprises | | 56 | Structures | PMA |
| 25497-04 | Rear window - left or right - inner - use with part number 772 & 773 | Aviation Enterprises | | 56 | Structures | PMA |
| 255 | Right center window - openable | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 255.250 | Right Center Window - Openable | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 256 | Left Rear Window - Baggage Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 257 | Right Rear Window - Baggage Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 2575PBW | Marker-"Fenster Window" | Aero Decals Inc | | 56 | Consumables / Hardware | PMA |
| 2576PBW | Marker-"Fenster Window" | Aero Decals Inc | | 56 | Consumables / Hardware | PMA |
| 258.250 | Storm Window - Vent | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 258FN35343A | WINDOW | — | — | 56 | Structures | OEM |
| 258FN35344A | WINDOW | PPG | — | 56 | Structures | OEM |
| 259 | Windshield | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 259, 259.187 | Windshield | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 25B444-01/ B7422750 | Valance panels Assy - Main Majlis | DPI Labs Inc | — | 56 | Structures | PMA |
| 25FC7881-39A | Panel Assembly-Cabin Window | — | | 56 | Structures | OEM |
| 25FC7881-39A | Panel Assembly-Cabin Window | — | | 56 | Structures | OEM |
| 25FC788141A | WINDOW | — | — | 56 | Structures | OEM |
| 25FN4733A/C | Panel Assembly, DV Direct Vision Window | — | | 56 | Structures | OEM |