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 6220-00-148-3462
NSN 5999-00-270-2276
NSN 5965-01-038-8081
NSN 4140-01-103-3377
NSN 5960-01-142-1995
NSN 6685-00-971-7406
NSN 5998-01-459-8137
NSN 6145-01-072-3352
NSN 7035-00-703-3535
NSN 5910-00-138-3287
NSN 6145-01-340-6261
NSN 6610-01-443-8396