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 6110-01-143-3362
NSN 5925-00-999-9320
NSN 5965-00-405-3793
NSN 5855-01-594-7809
NSN 5985-01-093-8956
NSN 6240-01-373-1439
NSN 7035-00-205-8739
NSN 6610-00-676-5305
NSN 5855-01-520-8747
NSN 5985-01-472-2037
NSN 5950-00-526-0658
NSN 7035-01-016-0401