A barrier including frame and still used wherever watertight or airtight construction is required. May also be used where local conditions require construction which is nontight. Excludes hatch,marine.
Classification: Doors, windows and frames and thresholds for doors of iron or steel
NSN 6145-01-068-3234
NSN 5905-01-563-5620
NSN 5960-00-597-2680
NSN 7035-00-104-7613
NSN 5950-01-062-9178
NSN 5945-01-111-1667
NSN 5920-01-558-4490
NSN 5905-00-507-3968
NSN 5960-00-872-5044
NSN 5895-01-141-7416
NSN 5835-01-026-6006
NSN 6610-00-445-2338