Defense and Military RF Military Standards and Testing Informational

What is the Defense Logistics Agency qualified manufacturers list for RF connectors?

The Defense Logistics Agency (DLA) qualified manufacturers list (QML) for RF connectors identifies manufacturers whose production processes and products have been evaluated and certified to meet the requirements of military performance specifications such as MIL-PRF-39012 (general purpose RF connectors), MIL-PRF-49142 (BNC connectors), and MIL-DTL-3655 (TNC connectors). The QML program ensures that connectors used in military equipment meet stringent requirements for electrical performance (VSWR, insertion loss, RF leakage, insulation resistance), mechanical performance (mating cycles, cable retention, vibration resistance), environmental endurance (temperature range, salt fog, humidity, altitude), and reliability over the required service life. Manufacturers on the QML have demonstrated through initial qualification testing and periodic auditing that their production processes are controlled and that their connectors consistently meet the specification requirements. Using QML-listed connectors reduces procurement risk because the government has verified the manufacturer's capability. The QML is maintained by DLA Land and Maritime in Columbus, Ohio, and is searchable through the Qualified Products Database (QPD) at the DLA website.
Category: Defense and Military RF
Updated: April 2026
Product Tie-In: Military-grade Components, Test Equipment

DLA Qualified Manufacturers List for Military RF Connectors

Military RF connector procurement through the QML system provides assurance that connectors will perform reliably in the demanding environments encountered in defense applications. The QML system has evolved over decades to address the unique challenges of connector quality and reliability.

Common Questions

Frequently Asked Questions

Can I use non-QML connectors in military equipment?

Using non-QML connectors in military equipment requires a waiver or deviation from the procurement specification, which must be approved by the program office and the government quality authority. In some cases, commercial connectors meeting the electrical requirements can be used with additional screening and testing, but this approach carries procurement risk.

What is the difference between QPL and QML for connectors?

The Qualified Products List (QPL) qualifies specific connector part numbers (products), while the Qualified Manufacturers List (QML) qualifies the manufacturer's process capability. QML allows the manufacturer to certify new products designed and manufactured on the qualified process without separate product qualification, providing more flexibility for new designs.

How do I find QML-listed RF connector manufacturers?

The DLA Qualified Products Database (QPD) at https://qpd.dla.mil provides searchable lists of qualified manufacturers and products by specification number. The DLA Land and Maritime website also publishes qualification status letters and updates. Most major connector distributors (like RF Connector and Cable Assembly, Pasternack, or Mouser) indicate QPL/QML status in their product listings.

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