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 6130-00-616-4841
NSN 6620-00-816-9755
NSN 5999-01-244-7398
NSN 4140-01-431-9065
NSN 5935-01-041-7123
NSN 5975-01-157-9432
NSN 6645-00-108-6479
NSN 6620-01-584-6653
NSN 5985-01-450-0157
NSN 4140-01-463-9023
NSN 5910-01-429-8931
NSN 6105-01-422-3764