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 5895-01-341-0435
NSN 5960-01-486-3060
NSN 5945-01-525-1311
NSN 5925-01-264-2752
NSN 6135-01-096-0330
NSN 6135-01-093-7426
NSN 5930-01-569-1132
NSN 6685-01-369-2064
NSN 6645-01-484-9847
NSN 6130-01-433-2449
NSN 6320-00-360-1744
NSN 5835-01-582-8530