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 6135-01-608-3470
NSN 5915-00-557-1760
NSN 5930-00-529-8641
NSN 5945-01-035-7145
NSN 7035-00-349-8571
NSN 5910-01-416-7721
NSN 6650-01-529-4601
NSN 5990-01-507-7495
NSN 5998-01-034-9641
NSN 5965-01-378-1393
NSN 5910-01-631-9077
NSN 5905-01-112-0724