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 6240-01-528-1585
NSN 5975-00-233-6301
NSN 2925-01-437-1128
NSN 5990-01-003-4209
NSN 5920-01-474-8172
NSN 5965-01-107-8549
NSN 6610-01-534-5747
NSN 5910-01-174-7407
NSN 6130-01-138-0873
NSN 5855-01-549-9570
NSN 5935-01-148-5577
NSN 5935-01-029-4113