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 5935-00-731-1803
NSN 5945-01-601-3648
NSN 5920-00-348-9134
NSN 5855-01-023-3727
NSN 6130-00-825-7552
NSN 5945-00-955-6690
NSN 6645-01-556-1441
NSN 6610-01-582-8181
NSN 2925-01-342-1712
NSN 5930-01-316-3650
NSN 5930-00-017-9463
NSN 5930-01-173-9935