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 6645-01-033-5051
NSN 5835-01-632-6627
NSN 5975-01-472-4201
NSN 6645-01-290-3930
NSN 5925-01-394-6058
NSN 6150-01-184-7788
NSN 5998-01-124-3903
NSN 6135-01-457-7849
NSN 6105-00-205-0655
NSN 5975-01-156-0894
NSN 5950-01-495-1879
NSN 5855-00-132-4898