| Make | Kollsman |
|---|---|
| Model | AAU-21 |
| Condition | Used |
| Location | Perrysburg, OH , US |
| Date Listed | Jul 30, 2026 |
Description
Kollsman AAU-21 — $250.
Specs
- Make / Model: Kollsman AAU-21
- Condition: Used
- Location: Perrysburg, OH
Summary
Altitude Range: −1,000 to +38,000 FT. MFR Part Number: C4154210003.
Description
Kollsman AAU-21/A Altimeter-Encoder — Military AircraftManufacturer: Kollsman Instrument CorporationModel: AAU-21/AMFR Part Number: C4154210003Serial No: CKP 1595 [SELLER TO CONFIRM]Contract: N00019-68-C-0409FSN: VH6610-168-0797 BP7XAltitude Range: −1,000 to +38,000 FTCountry: United StatesForm: Round panel-mount, large multi-pin (~30-pin) rear connector, static portCombined primary altimeter + Mode C encoder from Kollsman. AAU-21/A is a well-known military altimeter-encoder installed on many military aircraft and older business jets. High-value item due to combined altimeter/encoder function.[SELLER TO CONFIRM before publishing: full serial from Kollsman logo, PN verification, encoder function test, static port condition, connector pin condition.]Cosmetic wear as shown. Sold as-is — buyer assumes responsibility for testing, IA/A&P inspection, and any overhaul before airworthy use.
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