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 5950-01-443-6364
NSN 5996-00-101-9667
NSN 5965-00-787-3028
NSN 5950-00-347-9287
NSN 5998-00-827-0527
NSN 6610-00-071-0057
NSN 6220-01-237-5999
NSN 6320-01-006-6138
NSN 4140-00-464-7890
NSN 6610-01-265-0999
NSN 6240-01-518-7353
NSN 6105-01-359-9146