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 5855-00-763-2155
NSN 5996-01-113-0377
NSN 5925-00-614-3820
NSN 6650-01-449-2334
NSN 5999-01-471-6967
NSN 5915-01-580-6865
NSN 6145-01-585-5772
NSN 5985-01-282-5543
NSN 5920-00-964-2188
NSN 5990-00-419-0236
NSN 5835-01-657-0245
NSN 5895-01-085-6168