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 5996-00-361-9901
NSN 5925-01-463-9331
NSN 5930-01-381-0551
NSN 5950-01-299-7687
NSN 5930-01-623-7858
NSN 6150-00-116-7939
NSN 5996-01-167-3922
NSN 6145-00-017-9707
NSN 6685-01-602-5318
NSN 6220-00-211-6146
NSN 5975-01-472-9091
NSN 5855-01-646-1589