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 6645-01-602-7027
NSN 5950-01-123-9661
NSN 5975-01-062-1435
NSN 5910-01-214-0626
NSN 6240-01-139-3377
NSN 6620-01-591-6681
NSN 5960-00-945-1833
NSN 6150-00-644-0029
NSN 6650-00-466-1697
NSN 5855-00-484-8638
NSN 6135-01-062-9356
NSN 6150-00-856-1424