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 6240-00-978-9752
NSN 5960-01-602-6009
NSN 5915-01-410-7822
NSN 6685-00-670-0895
NSN 5945-01-087-5231
NSN 6130-00-568-9889
NSN 5998-01-433-1621
NSN 5930-01-492-9536
NSN 5925-01-360-5605
NSN 6110-00-483-9841
NSN 5920-00-974-4381
NSN 5975-00-083-1433