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Circular MIL-DTL-38999 37-pin connector, size 15, socket insert for rugged military-grade electronic connections.
The Amphenol D38999/20MD35SN is a circular MIL Spec connector compliant with MIL-DTL-38999 standards, featuring a 37-pin (37P) socket insert in size 15. Designed for high-reliability electrical interconnections in harsh environments, this connector supports secure and durable rugged connections commonly required in aerospace, defense, and industrial applications. Its flange mounting (FM) and shell configuration type 20 ensure compatibility with existing MIL-DTL-38999 systems. This new connector is ideal for integration into biotechnology instrumentation and clinical diagnostic equipment where robust signal fidelity and resistance to vibration or environmental factors are critical. The connector’s high-density contact arrangement is essential for complex bioprocessing workflows and molecular diagnostics platforms needing reliable multi-pin interfaces. Worldwide shipping supports global procurement for research laboratories and industrial OEMs.
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We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 4 November 2026
The middle half of the 253 with a price runs from €154 to €493.