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 6685-00-326-0724
NSN 5945-01-589-7804
NSN 6650-01-159-4251
NSN 6610-01-211-6182
NSN 5935-01-382-7913
NSN 5945-01-658-8105
NSN 5999-00-955-0183
NSN 5960-01-260-7430
NSN 5945-01-369-0883
NSN 6220-01-139-3520
NSN 6110-00-918-4738
NSN 5999-00-655-1144