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 5945-00-290-1779
NSN 5999-01-080-5341
NSN 6620-01-253-0374
NSN 5895-01-069-1345
NSN 5930-00-985-4780
NSN 5996-01-232-7395
NSN 5930-01-193-1444
NSN 5855-00-862-3345
NSN 5925-01-468-3322
NSN 5910-01-386-7403
NSN 5920-01-294-7511
NSN 6135-01-388-2761