A comparatively flat rigid item, having a centrally located aperture, designed to hold a window in position in mechanical or optical instruments. It must have drilled and/or tapped holes for mounting purposes.
Classification: Other base metal mountings, fittings etc, nesoi
NSN 5999-00-539-6709
NSN 6650-01-063-6604
NSN 6220-00-098-7923
NSN 5910-01-266-9506
NSN 5855-01-142-7530
NSN 5985-01-313-7839
NSN 6685-01-198-0875
NSN 6130-01-442-9493
NSN 6105-01-391-7500
NSN 5950-00-983-5586
NSN 5960-01-658-9538
NSN 6145-00-226-9499