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 6240-01-231-4184
NSN 5999-01-519-9353
NSN 6650-01-257-7237
NSN 6620-01-284-1145
NSN 5960-00-233-5488
NSN 5998-01-012-3273
NSN 5998-00-437-8089
NSN 6130-00-291-4877
NSN 6105-00-240-3372
NSN 5930-00-294-9189
NSN 5915-00-916-2290
NSN 5905-00-255-5160