A large metallic or nonmetallic closure used to close the opening in a hangar, building, warehouse, and the like to exclude light and wind, maintain reasonable weather tightness, and provide auxiliary access to areas outside the area proper. It is comprised of horizontal interlocking slats and guided at the ends by channel tracks. The item may be designed for rolling on a spring counterbalanced drum or be laterally guided by channel tracks. It may be power or hand operated and may include a hood or cover for the roller drum mechanism.
NSN 5950-01-104-6342
NSN 5925-01-537-5337
NSN 2925-01-175-1217
NSN 5925-00-052-7771
NSN 6240-01-371-3020
NSN 5960-01-573-6483
NSN 6220-01-032-5269
NSN 5999-01-037-5593
NSN 5855-01-524-2040
NSN 5999-01-289-9850
NSN 7035-01-229-0941
NSN 6645-01-076-4655