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 5920-00-283-1321
NSN 5960-00-636-4834
NSN 5855-01-556-7421
NSN 6130-00-072-9854
NSN 5975-01-628-0064
NSN 6110-01-342-0688
NSN 5996-00-009-9343
NSN 5920-01-069-9833
NSN 4140-01-600-3299
NSN 5999-01-569-5596
NSN 5990-01-148-0435
NSN 6130-01-289-8051