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 6150-01-204-8656
NSN 5935-01-399-1886
NSN 5910-00-118-6240
NSN 5915-01-119-5126
NSN 5950-01-153-2650
NSN 6240-01-014-5598
NSN 6105-01-097-8743
NSN 6105-01-224-7258
NSN 5935-01-454-4553
NSN 5915-01-099-1018
NSN 2925-01-633-4048
NSN 5915-01-309-0038