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 5930-01-028-3693
NSN 6110-01-149-9190
NSN 6610-00-217-2194
NSN 6645-00-429-0172
NSN 6320-01-274-2501
NSN 6650-00-235-6272
NSN 2925-01-424-0235
NSN 6145-00-870-1137
NSN 5945-01-431-5195
NSN 6610-01-039-0788
NSN 5935-01-549-9442
NSN 6135-01-633-2066