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 5960-01-391-1308
NSN 5835-01-599-1876
NSN 5905-00-066-0067
NSN 5996-00-518-0460
NSN 6145-00-070-2385
NSN 7035-01-467-1049
NSN 5910-00-717-6792
NSN 6105-00-434-5622
NSN 6650-00-193-7358
NSN 5965-01-328-7979
NSN 6685-00-877-9593
NSN 4140-01-476-5436