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 5965-01-059-4028
NSN 5835-01-381-9565
NSN 5855-01-328-7434
NSN 6135-01-532-7951
NSN 6145-01-589-7530
NSN 6650-00-621-9883
NSN 5960-01-156-7469
NSN 5990-01-230-0059
NSN 5950-00-289-9889
NSN 5935-00-325-0469
NSN 5998-00-845-1994
NSN 6135-01-322-4655