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 2925-01-516-7940
NSN 5999-01-462-0180
NSN 6685-00-524-6003
NSN 2925-01-020-5099
NSN 6650-00-229-3790
NSN 5930-01-185-9649
NSN 5998-01-651-5041
NSN 5996-01-156-7498
NSN 5930-00-783-5070
NSN 5999-00-596-8745
NSN 6610-00-224-8833
NSN 5990-01-282-4617