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 6645-01-540-0231
NSN 6685-01-265-2739
NSN 5920-01-049-0022
NSN 5930-00-656-8173
NSN 5960-00-108-5318
NSN 4140-01-318-5962
NSN 5855-01-373-7538
NSN 5999-00-949-2863
NSN 5905-01-566-1062
NSN 5960-00-237-2416
NSN 5945-01-581-6298
NSN 5999-01-085-5082