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 5835-00-498-8189
NSN 6110-01-400-4207
NSN 4140-01-271-4921
NSN 5950-01-525-6279
NSN 5945-00-041-2849
NSN 4140-00-501-7833
NSN 7035-01-541-0554
NSN 5950-01-555-4048
NSN 6240-01-256-3336
NSN 2925-00-872-4474
NSN 5935-00-233-7158
NSN 4140-01-342-8286