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 4140-00-905-6570
NSN 5910-00-350-9648
NSN 5925-01-555-0702
NSN 5835-00-880-6477
NSN 5950-00-507-6615
NSN 5895-00-145-2657
NSN 5930-01-550-6135
NSN 5895-01-235-6917
NSN 6150-00-622-3902
NSN 6135-01-387-0754
NSN 5920-01-060-9302
NSN 5855-01-535-7127