The Payload Adapter Systems (PAS) are compatible with industry standard forward interfaces of 937 mm, 1194 mm and 1666 mm diameter (circular ring section) and with the BSS702 four (4) bolt interface at a 65-inch diameter. The aft interface of all the systems is the EELV standard 1575 mm (62 inch). All systems are delivered with adapter, release mechanism, clamp band and retention devices, separation spring set, electrical umbilical hardware, and required wiring harness. The adapter structures are designed and manufactured from aluminium ring forgings and CFRP shell structures using the experience gained in previous space programs and in Saab AerPAS 66VS ospace programs.