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 5895-01-215-0413
NSN 2925-01-073-8223
NSN 5915-01-143-0937
NSN 5930-01-602-9356
NSN 6145-01-365-4022
NSN 5920-01-475-4892
NSN 6645-00-819-5045
NSN 6685-00-903-3352
NSN 5985-01-437-4873
NSN 6610-01-029-8749
NSN 4140-01-574-3955
NSN 6320-01-552-8721