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 6220-01-019-7606
NSN 6240-00-669-6652
NSN 5985-00-288-6001
NSN 5945-01-139-4260
NSN 6135-00-305-2052
NSN 6110-01-388-3211
NSN 5945-00-475-1478
NSN 6110-00-297-5768
NSN 5905-00-179-4602
NSN 6650-00-170-5095
NSN 6650-01-559-7635
NSN 5920-01-526-2207