Hermetic Connectors. Engineered to Endure.

U.S.-made MIL-DTL-26500 hermetic connectors with glass-to-metal seals for aerospace and defense.

Built for Sealed Reliability

Hermetic performance, controlled manufacturing, and a clear path from drawing to delivered connector.

Why BoldX

Machining and hermetic connector manufacturing under one roof.

Fewer handoffs between precision components, glass-to-metal sealing, inspection, and documentation. We support build-to-print programs and second-source evaluations with practical engineering feedback. Related hubs: https://www.getboldx.com/what-we-do/connectors, https://www.getboldx.com/what-we-do/mil-dtl-38999-hermetic-connectors, and https://www.getboldx.com/what-we-do/mil-dtl-83723-hermetic-connectors.

26500 at a glance

MIL-DTL-26500 circular connector family overview.

MIL-DTL-26500 (also known as MIL-C-26500) circular connectors are used in aerospace and harsh-environment interconnect applications. The family includes environment-resistant designs with bayonet coupling and configurations suited to size, weight, and environmental constraints. Hermetic variants use glass-to-metal seals to protect systems from moisture, pressure differentials, and harsh environments when sealed performance is required.

Application fit

Qualification, testing, traceability, and documentation for critical systems.

Aerospace, defense, and other critical systems may require qualification, material control, electrical testing, leak testing, and traceability. We review the drawing, applicable specification, quantities, and documentation requirements before quoting.

Catalog and configuration

A clear path from preferred configuration to RFQ review.

If you have a preferred configuration or catalog reference, include it with your RFQ. We can help confirm series/style, shell, contact arrangement, finish, keying, and sealing requirements.