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 6150-01-573-3585
NSN 5950-01-658-2801
NSN 5945-01-424-1100
NSN 5935-00-598-6126
NSN 5998-00-361-8697
NSN 5960-00-108-5318
NSN 5950-00-525-2931
NSN 5930-01-598-0376
NSN 6130-01-381-1046
NSN 6220-00-504-2943
NSN 6685-01-435-4366
NSN 6135-01-204-8712