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 5910-01-199-4378
NSN 5950-00-127-8261
NSN 5999-01-519-2442
NSN 6620-00-527-9280
NSN 5915-00-993-2970
NSN 6620-00-045-8134
NSN 5895-00-403-8707
NSN 5998-01-458-6910
NSN 5985-01-330-4697
NSN 5975-00-762-1251
NSN 6610-01-476-9945
NSN 5895-01-424-5913