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 5930-00-353-4235
NSN 6145-01-631-8068
NSN 6650-00-866-9947
NSN 5998-01-338-8880
NSN 5999-01-222-0389
NSN 5965-00-465-9566
NSN 5905-01-381-1425
NSN 6220-00-054-5094
NSN 5985-01-113-7837
NSN 5920-00-681-1172
NSN 2925-00-724-9252
NSN 6135-01-275-9767