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 6650-00-205-6282
NSN 5915-00-930-5322
NSN 6150-00-719-6119
NSN 5925-00-831-8882
NSN 5960-01-406-4136
NSN 5910-00-851-8439
NSN 5930-01-261-2553
NSN 6650-01-498-2633
NSN 5960-01-632-6576
NSN 6220-01-394-6858
NSN 6620-00-608-1480
NSN 6645-00-634-9317