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 5945-01-096-8831
NSN 6135-00-474-1397
NSN 5925-01-505-3478
NSN 2925-01-459-8093
NSN 5990-01-548-3711
NSN 6105-01-569-5308
NSN 6320-01-302-5157
NSN 5935-01-149-4644
NSN 5920-01-241-0566
NSN 5910-00-477-9437
NSN 6610-01-097-5073
NSN 6685-01-109-7208