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 5950-00-345-9509
NSN 4140-01-562-7868
NSN 5950-00-973-5803
NSN 5950-01-012-5128
NSN 5965-01-489-5508
NSN 6220-01-168-5708
NSN 4140-00-270-8075
NSN 6135-00-643-4843
NSN 5985-01-601-2676
NSN 5920-00-515-3617
NSN 5915-01-385-8699
NSN 6135-01-168-2944