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 4140-01-135-4617
NSN 5999-01-321-8070
NSN 5935-01-261-0883
NSN 6320-01-442-3428
NSN 5835-01-010-3103
NSN 5915-01-020-9153
NSN 6620-00-919-6710
NSN 2925-01-209-3584
NSN 6135-01-168-2944
NSN 5999-01-606-6350
NSN 5910-01-329-0665
NSN 5999-01-173-5616