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 5925-01-386-7084
NSN 5835-00-003-0295
NSN 6135-00-998-5884
NSN 5960-01-337-2823
NSN 6240-01-089-6149
NSN 6610-01-226-5192
NSN 5855-01-589-0121
NSN 6240-01-633-3863
NSN 5895-00-138-0648
NSN 6150-01-182-9704
NSN 6685-00-135-1353
NSN 6135-01-468-6491