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 5996-01-246-4675
NSN 5990-00-543-2755
NSN 6110-01-217-8817
NSN 5996-01-604-3775
NSN 5996-01-176-7275
NSN 5965-01-550-5587
NSN 6620-00-080-2847
NSN 6105-01-314-2902
NSN 6610-01-389-3082
NSN 6135-01-079-7852
NSN 6145-00-125-6859
NSN 6620-00-296-6762