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 5960-01-487-6436
NSN 6685-01-634-0611
NSN 5990-00-283-1324
NSN 6610-01-527-8006
NSN 5950-00-696-9190
NSN 6620-00-246-5159
NSN 5950-00-843-5556
NSN 2925-01-055-9705
NSN 5965-01-100-1195
NSN 6220-01-549-6135
NSN 5999-01-597-2854
NSN 6145-01-425-3373