Day & Zimmermann (D&Z) has awarded a contract to Aerojet Rocketdyne’s speciality metal provider Aerojet Ordnance Tennessee (AOT) to supply M67 hand grenade body assemblies for the US Army.

The first year of the five-year contract will see the manufacture and delivery of additional 200,000 fragmentation hand grenade body assemblies.

Aerojet Rocketdyne CEO and president Eileen P Drake said: “AOT has been the sole supplier of M67 hand grenade body assemblies for more than 20 years.

“The members of the Aerojet Rocketdyne team who manufacture these hand grenade bodies, and other specialty metal components at AOT, are proud of their role protecting our warfighters.”

The M67 hand grenade comprises a 2.5in-diameter steel sphere containing 6.5oz of high explosives, along with a fuse for detonation.

The explosive weapon is used in close combat situations to supplement small arms fire.

D&Z Munitions and Government Division president Michael Yoh said: “D&Z has been proud to partner with AOT for many years in delivering the highest quality grenades to our warfighters and allies.

“The two companies have a long tradition of working well together, and D&Z looks forward to continuing this partnership with this contract.”

AOT delivers specialty metal components for defence, aerospace and commercial products.

Its metal capabilities include powder metallurgy, primary metal processing, metal casting, heat treatment, and computer-aided machining among others.

AOT produces the M67 hand grenade body at its Jonesborough unit in Tennessee.

In October 2020, AOT achieved a milestone with the delivery of the eight millionth M67 hand grenade body.