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 6135-01-285-8807
NSN 5975-01-025-1613
NSN 6645-01-124-6277
NSN 5910-00-007-2139
NSN 5965-01-322-7236
NSN 6110-00-518-2998
NSN 6110-01-085-6698
NSN 5999-00-959-2486
NSN 6320-01-134-7267
NSN 5915-00-299-0192
NSN 5930-01-051-1128
NSN 5835-01-109-4775