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 6220-00-139-1421
NSN 5925-01-277-4851
NSN 6130-01-132-0199
NSN 5990-01-227-6526
NSN 5996-00-457-2505
NSN 6650-01-088-1280
NSN 5925-01-088-6863
NSN 6220-01-566-1982
NSN 5915-01-369-7380
NSN 6320-01-495-6893
NSN 6110-01-482-0337
NSN 5905-00-983-6014