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 5950-01-430-2203
NSN 5935-01-415-0027
NSN 5985-00-547-8642
NSN 6610-00-223-4519
NSN 5965-01-371-1297
NSN 7035-01-658-1623
NSN 5920-01-025-9381
NSN 5998-01-542-9731
NSN 6105-01-414-7100
NSN 6220-01-446-6430
NSN 6645-01-519-6324
NSN 5895-01-411-7220