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 5855-01-365-4287
NSN 5855-00-930-5131
NSN 6620-01-544-8735
NSN 5835-01-557-9062
NSN 6620-01-259-5944
NSN 5915-00-895-7230
NSN 6685-01-382-7956
NSN 6130-01-473-7460
NSN 6650-01-422-7106
NSN 5960-00-303-3675
NSN 6240-01-512-1856
NSN 5965-00-393-1294