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 6620-01-168-8244
NSN 5999-01-484-1509
NSN 6220-01-225-4411
NSN 5965-01-022-3298
NSN 5999-00-665-9016
NSN 5996-00-268-8422
NSN 5910-01-371-2553
NSN 5930-01-555-7912
NSN 5945-00-163-4060
NSN 6135-01-313-8323
NSN 5965-01-267-5263
NSN 6320-01-328-6575