Level 1 requirement to MISSION SYSTEMS ORCHARD PARK INC . This item is on a qualified product list (QPL). Only those items which have been tested and approved in accordance with the qualification requ... Level 1 requirement to MISSION SYSTEMS ORCHARD PARK INC . This item is on a qualified product list (QPL). Only those items which have been tested and approved in accordance with the qualification requirements of the specifications will be acceptable for consideration.This requirement is subject to the QPL requirements. See FAR 52.209-1 for additional details, QPL-24439MIL-V-24439. NSN 3HD 4820-01-108-4542 C1 VALVE,GLOBE SEE TECHNICAL REQUIREMENTS IN SECTIONS C, D, E, AND ATTACHMENTS QTY 8 EA