| 177 | Right Center #2 Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 177100 | pilot window | israel aerospace industries ltd | — | 56 | Structures | OEM |
| 177100-01 | Pilot Window | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 177200 | copilot window | israel aerospace industries ltd | — | 56 | Structures | OEM |
| 177200-02 | Copilot Window | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 177300 | l h and r h over head window | israel aerospace industries ltd | — | 56 | Structures | OEM |
| 177300-01 | L/H Overhead Window | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 177300-02 | R/H Overhead Window | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 177400 | dv piolt window | israel aerospace industries ltd | — | 56 | Structures | OEM |
| 177400-01 | Pilot Window | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 178 | Left Rear #3 Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 178000-01 | Sliding Window Assembly | Sierracin/Sylmar Corp (Surrendered supplement on 4-22-2009) | — | 56 | Structures | PMA |
| 178000-02 | Sliding Window Assembly | Sierracin/Sylmar Corp (Surrendered supplement on 4-22-2009) | — | 56 | Structures | PMA |
| 1782011 | WINDSHIELD | — | — | 56 | Structures | OEM |
| 17820110 | WINDSHIELD | PPG | — | 56 | Structures | |
| 1782018 | WINDSHIELD | — | | 56 | Structures | OEM |
| 178500-09 | Windshield Assembly. LH | Shimadzu Precision Instru Inc | — | 56 | Structures | PMA |
| 178500-10 | Windshield Assembly. RH | Shimadzu Precision Instru Inc | — | 56 | Structures | PMA |
| 178500-13 | Windshield Assembly. LH | Shimadzu Precision Instru Inc | — | 56 | Structures | PMA |
| 178500-14 | Windshield Assembly. RH | Shimadzu Precision Instru Inc | — | 56 | Structures | PMA |
| 178500-5 | Windshield Assembly LH | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 178500-6 | Windshield Assembly RH | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 17850016 | WINDSHIELD | — | | 56 | unknown | OEM |
| 178600-03 | Windshield Assembly. LH | Shimadzu Precision Instru Inc | — | 56 | Structures | PMA |
| 178600-04 | Windshield Assembly. RH | Shimadzu Precision Instru Inc | — | 56 | Structures | PMA |
| 178600-1 | Side Window Assembly LH | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 178600-2 | Side Window Assembly RH | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 178900-03 | Cabin Window Pane Assy. | Sierracin/Sylmar Corp | — | 56 | Structures | PMA |
| 179 | Right Rear #3 Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 17910001 | SLIDING WINDOW | — | | 56 | unknown | OEM |
| 17910002 | SLIDING WINDOW | — | | 56 | unknown | OEM |
| 17HP1199-1 | Windshield Assembly LH | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP1199-2 | Windshield Assembly RH | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP1221-1 | Window Assembly L/H Upper Canopy | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP1221-2 | Window Assembly R/H Upper Canopy | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP1221-3 | Window Assembly L/H Upper Canopy | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP1221-4 | Window Assembly R/H Upper Canopy | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP2522-1 | Window Assembly L/H Aft Fuselage | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP2522-2 | Window Assembly R/H Aft Fuselage | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP2522-5 | Window Assembly L/H Aft Fuselage | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 17HP2522-6 | Window Assembly R/H Aft Fuselage | Aeronautical Plastics of Texas Inc | — | 56 | Structures | PMA |
| 18-534010-49 | Beech 18 Picture Window - RH or LH - Inner | — | — | 56 | Structures | OEM |
| 18-534010-49 | Beech 18 Picture Window - RH or LH - Inner | — | — | 56 | Structures | OEM |
| 180 | Right Front Cabin Door Window | LP Aero Plastics Inc | — | 56 | Structures | PMA |
| 1801484-002 | Harness Assemblies for Window Lights | Goodrich | | 56 | Structures | PMA |
| 1801484-003 | Harness Assemblies for Window Lights | Goodrich | | 56 | Structures | PMA |
| 1801484-004 | Harness Assemblies for Window Lights | Goodrich | | 56 | Structures | PMA |
| 1801484-005 | Harness Assemblies for Window Lights | Goodrich | | 56 | Structures | PMA |
| 181 | Cabin Door Window - Outer | LP Aero Plastics Inc | | 56 | Structures | PMA |
| 181.125, 181.187, 181.250 | Right front door window | LP Aero Plastics Inc | | 56 | Structures | PMA |