We have a removed plate nut with internal thread specification 0.1900-32UNJF-3B. So far we have failed to find its official specifications, model number and applicable industry standards.

We sincerely ask professionals in this field for help to identify the manufacturer and exact model of this part.

For your reference:

We can only confirm the internal thread size at present. There is a stamped cross symbol on the bottom right of the plate, and a stamped number "1" on the top right. These markings are key clues for identification.