A flat rigid item provided with holes or similar means for attaching to a container for the purpose of holding an observation window in place.
Classification: Other articles of glass, nesoi
NSN 5905-01-359-8751
NSN 5999-01-024-1348
NSN 6320-00-270-8222
NSN 5930-01-324-5331
NSN 7035-01-131-1168
NSN 6105-01-086-8062
NSN 5835-01-439-0180
NSN 6105-00-217-0993
NSN 4140-01-236-5694
NSN 6620-00-443-7587
NSN 4140-01-026-2725
NSN 6320-00-519-0770