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 5910-01-631-7131
NSN 6145-00-418-2719
NSN 5920-01-634-0250
NSN 5990-00-752-2126
NSN 6645-01-083-4759
NSN 5945-00-353-7491
NSN 5915-01-301-1070
NSN 5950-00-810-3428
NSN 5925-01-486-1918
NSN 7035-01-420-5404
NSN 5905-00-200-1402
NSN 6620-01-266-8894