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 5925-01-211-7745
NSN 6130-00-925-2303
NSN 6220-01-645-2625
NSN 6645-01-381-7104
NSN 5930-01-119-9223
NSN 6645-01-159-1489
NSN 5996-01-625-0427
NSN 6240-01-075-4271
NSN 5855-00-079-2370
NSN 5935-00-143-1399
NSN 7035-00-470-4977
NSN 5950-01-477-3920