Skip to content
AOG 24/7 expedite desk
American Aviation Parts datum · avionics
Your Aircraft Cart (0)

Transponders

ATA · 347 parts

Transponders brings together the parts, hardware, and consumables your maintenance program calls out for this system. Each listing shows its condition and the certification paperwork available for that part, from new PMA/OEM stock to overhauled and serviceable units, so you can confirm airworthiness before buying and request an FAA 8130-3 or manufacturer Certificate of Conformance where one applies.
Nano Encoder/50K/RS232 SSD120-50N-RS232
Nano Encoder/50K/RS232 SSD120-50N-RS232
NE
P/N SSD120-50N-RS232 Trans-Cal Industries
$4,154.51
Price and availability checked Oct 28, 2026 MST
Backorder
Encoder/5 Channels RS232/50K SSD120-50N-RS5
Encoder/5 Channels RS232/50K SSD120-50N-RS5
NE
P/N SSD120-50N-RS5 Trans-Cal Industries
Quote only
Backorder
Nano Encoder/50K/RS232/Ext Temp SSD120-50NE-RS232
Nano Encoder/50K/RS232/Ext Temp SSD120-50NE-RS232
NE
P/N SSD120-50NE-RS232 Trans-Cal Industries
$4,060.42
Price and availability checked Oct 28, 2026 MST
Backorder
Encoder/5 Channels RS232/50K/Ex Temp SSD120-50NE-RS5
Encoder/5 Channels RS232/50K/Ex Temp SSD120-50NE-RS5
NE
P/N SSD120-50NE-RS5 Trans-Cal Industries
$3,584.15
Price and availability checked Oct 28, 2026 MST
Backorder
Altitude Encoder/50K/Waterproof/Hermetically Sealed MIL-DTL-38999 Connector/Dual RS232 And One RS485 Output SSD120-50NEH-RS
Altitude Encoder/50K/Waterproof/Hermetically Sealed MIL-DTL-38999 Connector/Dual RS232 And One RS485 Output SSD120-50NEH-RS
NE
P/N SSD120-50NEH-RS Trans-Cal Industries
$11,940.10
Price and availability checked Oct 28, 2026 MST
Backorder
Nano Encoder/62K/RS232 SSD120-62N-RS232
Nano Encoder/62K/RS232 SSD120-62N-RS232
NE
P/N SSD120-62N-RS232 Trans-Cal Industries
$5,179.80
Price and availability checked Oct 28, 2026 MST
Backorder
Encoder/5 Channels RS232/62K SSD120-62N-RS5
Encoder/5 Channels RS232/62K SSD120-62N-RS5
NE
P/N SSD120-62N-RS5 Trans-Cal Industries
Quote only
Backorder
Nano Encoder/62K/RS232/Ext Temp SSD120-62NE-RS232
Nano Encoder/62K/RS232/Ext Temp SSD120-62NE-RS232
NE
P/N SSD120-62NE-RS232 Trans-Cal Industries
$5,145.85
Price and availability checked Oct 28, 2026 MST
Backorder
Encoder/5 Channels RS232/62K/Ex Temp SSD120-62NE-RS5
Encoder/5 Channels RS232/62K/Ex Temp SSD120-62NE-RS5
NE
P/N SSD120-62NE-RS5 Trans-Cal Industries
Quote only
Backorder
Alt Encoder Pressure Altitude/Rectangle, 62K. Pressure Altitude: -1,000 to 62,700 ft 650-1
Alt Encoder Pressure Altitude/Rectangle, 62K. Pressure Altitude: -1,000 to 62,700 ft 650-1
NE
P/N 650-1 Davtron
$338.14
Price and availability checked Oct 28, 2026 MST
Backorder
Alt Encoder Pressure Altitude/Round, 62K. Pressure Altitude: -1,000 to 62,700 ft 650-2
Alt Encoder Pressure Altitude/Round, 62K. Pressure Altitude: -1,000 to 62,700 ft 650-2
NE
P/N 650-2 Davtron
$327.04
Price and availability checked Oct 28, 2026 MST
Backorder
Nano Encoder/65K/RS232 SSD120-65N-RS232
Nano Encoder/65K/RS232 SSD120-65N-RS232
NE
P/N SSD120-65N-RS232 Trans-Cal Industries
$6,174.05
Price and availability checked Oct 28, 2026 MST
Backorder
Encoder/5 Channels RS232/65K SSD120-65N-RS5
Encoder/5 Channels RS232/65K SSD120-65N-RS5
NE
P/N SSD120-65N-RS5 Trans-Cal Industries
Quote only
Backorder
Nano Encoder/65K/RS232/Ext Temp SSD120-65NE-RS232
Nano Encoder/65K/RS232/Ext Temp SSD120-65NE-RS232
NE
P/N SSD120-65NE-RS232 Trans-Cal Industries
$10,101.58
Price and availability checked Oct 28, 2026 MST
Backorder
Encoder/5 Channels RS232/65K/Ex Temp SSD120-65NE-RS5
Encoder/5 Channels RS232/65K/Ex Temp SSD120-65NE-RS5
NE
P/N SSD120-65NE-RS5 Trans-Cal Industries
Quote only
Backorder
Sae 5-35 Altitude Encoder/35K' 705154-00 / 305154-00
Sae 5-35 Altitude Encoder/35K' 705154-00 / 305154-00
NE
P/N 705154-00 / 305154-00
$594.61
Price and availability checked Oct 28, 2026 MST
In stock
Air Data Computer/SAC7-35, includes mounting tray, install kit, Oat probe, install manual. 705548-00
Air Data Computer/SAC7-35, includes mounting tray, install kit, Oat probe, install manual. 705548-00
NE
P/N 705548-00 Sandia
$3,944.02
Price and availability checked Oct 28, 2026 MST
In stock
Air Data Computer and Data Translator/SAC7-35. Provides interface between Garmin 400W/500W navigators and Collins Tdr 94D mode 5 transponder for Adsb out. Outputs Oat. Baro-correction altitude. Wind vector and fuel flow information. Includes: Adc unit, Oa
Air Data Computer and Data Translator/SAC7-35. Provides interface between Garmin 400W/500W navigators and Collins Tdr 94D mode 5 transponder for Adsb out. Outputs Oat. Baro-correction altitude. Wind vector and fuel flow information. Includes: Adc unit, Oa
NE
P/N 305548-01 Garmin
$6,656.14
Price and availability checked Oct 28, 2026 MST
In stock
STX-165R Remote Transponder 705831-00
STX-165R Remote Transponder 705831-00
NE
P/N 705831-00 Sandia
$2,357.10
Price and availability checked Oct 28, 2026 MST
In stock
STX-165 Panel Mount Transponder Kit 705832-00
STX-165 Panel Mount Transponder Kit 705832-00
NE
P/N 705832-00 Sandia
$2,614.15
Price and availability checked Oct 28, 2026 MST
In stock
Returnted STX-165 Panel Mount Transponder/Brand New Condition/No Original Outer Packaging 705832-00 — photo coming soon
Returnted STX-165 Panel Mount Transponder/Brand New Condition/No Original Outer Packaging 705832-00
NE
P/N 705832-00 ACK Technologies
$1,794.50
Price and availability checked Oct 28, 2026 MST
Backorder
Nano Encoder/80K/RS232/Ex Temp SSD120-80N-RS232
Nano Encoder/80K/RS232/Ex Temp SSD120-80N-RS232
NE
P/N SSD120-80N-RS232 Trans-Cal Industries
Quote only
Backorder
Encoder/5 Channels RS232/80K SSD120-80N-RS5
Encoder/5 Channels RS232/80K SSD120-80N-RS5
NE
P/N SSD120-80N-RS5 Trans-Cal Industries
Quote only
Backorder
Nano Encoder/80K/RS232/Ex Temp SSD120-80NE-RS232
Nano Encoder/80K/RS232/Ex Temp SSD120-80NE-RS232
NE
P/N SSD120-80NE-RS232 Trans-Cal Industries
Quote only
Backorder