The 4-24-42 from Moog is a Secondary Small Satellite Payload Adapter with a port payload capacity of  700 Kg and a mass of 211 Kg. This payload adapter has 4 ports with a port size of 24 inches. It has a ring height of 42 inches and uses 1/4-inch port interface bolts. The ESPA mounts to the standard NSSL (formerly EELV) interface bolt pattern (Atlas V, Falcon 9, Delta IV, OmegA, Vulcan, New Glenn) and is a drop-in component in the launch stack. It has flown on several successful missions such as the Air Force’s STP-1 mission, NASA’s LCROSS mission, and AFRL’s DSX mission.