The SSMM units will be used on the US Navy’s Littoral Combat Ship (LCS).
Teledyne Brown Engineering is a subsidiary of Teledyne Technologies, a US-based company that supplies instrumentation, aerospace and defence electronics.
The contract is valued at $18m.
The SSMMs will be manufactured, assembled and tested at Teledyne subsidiary’s main facility in Huntsville, Alabama.
SSMM is a modular weapons system that launches Longbow Hellfire missile in a vertical launch capability to target threats.
It complements the gun mission module (GMM), which is also made by Teledyne Brown Engineering in Huntsville.
Teledyne Brown Engineering president Jan Hess said: “We are pleased to announce the continuation of our collaboration with Northrop Grumman to deliver state-of-the-art enhancements to our nation’s military.”
The latest contract is Teledyne’s second award to build the hardware. It initially started manufacturing under a contract awarded in September 2019.
Upon completion of the SSMMs, the systems will be integrated with launch control assemblies and other equipment into the modules.
The system will be validated by Teledyne Brown Engineering, alongside Northrop Grumman and the US Navy, using SSMM-specific software and emulators.
For the past ten years, Teledyne Brown Engineering has been supporting this programme of building LCS Mission Modules.
In October 2019, NAVSEA awarded a contract to Teledyne Brown Engineering to continue the production and delivery of MK11 Shallow Water Combat Submersible (SWCS) systems.