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 6220-00-026-9812
NSN 6650-00-520-5785
NSN 6685-01-451-4796
NSN 5915-01-565-3091
NSN 6240-00-333-5627
NSN 5895-01-109-2410
NSN 5999-01-341-6284
NSN 5990-01-434-7913
NSN 5835-01-254-8584
NSN 6320-01-340-4112
NSN 6130-00-982-7847
NSN 6135-01-554-4281