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 5990-01-179-5625
NSN 7035-00-908-4933
NSN 5895-00-288-5878
NSN 5950-01-497-1823
NSN 5930-00-251-3913
NSN 6150-01-143-5972
NSN 6105-01-603-1497
NSN 6110-01-389-6208
NSN 6130-01-492-0482
NSN 6105-01-406-2828
NSN 5935-01-512-8420
NSN 6105-00-481-0781