The MD90 Series aircraft clocks have precision 12-hour format with solid-state quartz movements that meet rugged aircraft environmental standards.
Version (Alternate Part# MD90L-5) is an electric quartz 8-32V analog clock and has 5V internal lighting.
- Precision quartz movement
- Compact 2-inch size — fits standard panel cutout
- Transient and reverse polarity protected
- Original equipment for many major aircraft manufacturers
- Low power consumption (3 mA)
- Continuously powered by aircraft battery
- FAA PMA certified
AI disclosure: this description was generated with AI assistance from this product's own listing data.
Product Codes | |
|---|---|
| Mfr Part No: | MD-90L |
| ECCN: | 7A994 |
| SCHEDULE B CODE: | 9014208040 |
Weight: 0.5 lbsDimensions: 2.5 x 2.5 x 3.2 inches maxPower Input: 8–32 VDC 3 mA max (without lighting)Accuracy: ±30 seconds in 24 hrsTemperature: –40°C to +82°C (–40°F to +180°F)Altitude: –1,000 to +55,000 feetHumidity: 0 to 95% at 25°CVibration: .02 in. dbl. ampl., 1.5g @ 5 to 50 HzCertification: FAA PMA certifiedMounting: Front or rear panel mountedConnector: #6-32 threaded terminals
- Stock: Warehouse
- Manufacturer Part #: MD-90L
Aircraft Fitment Finder
Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies only to customer-remorse returns and customer-initiated cancellations. If a problem is our fault (our cancellation, unavailability, wrong item, confirmed defect, or shipping damage) your refund is 100% with no fees.
- Return shipping: paid by buyer on customer-remorse returns; we pay return shipping when the problem is our fault.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
We source products from manufacturers, authorized distributors, and established aviation suppliers as applicable. We are an independent reseller; we do not claim direct dealer or authorized-representative status for any brand. Documentation, source, and warranty eligibility vary by product and are confirmed on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
