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 6240-01-574-9304
NSN 6150-01-617-4193
NSN 6240-00-855-4518
NSN 5996-00-007-1384
NSN 6610-00-705-9502
NSN 5998-00-284-3804
NSN 7035-01-422-9483
NSN 6320-01-631-7828
NSN 5975-00-281-5587
NSN 5920-01-547-8757
NSN 6220-00-973-9416
NSN 7035-01-066-5676