44 short RF and 442 Tranter RF ID help?

Hi all, I need help to identify these units. I have it as a 44 short but it could be, at least one, 442 tranter. Any help?

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First unit, stamped “U”:
case length 16,3mm
Rin diam.: 13.1mm
Case diam.: 11.15mm

Second, without stamp:
case length 16,6mm
Rin diam.: 12,95mm
Case diam.: 11.40mm

Third, stamped “H”
case length 17,5mm
Rin diam.: 12,95mm
Case diam.: 11.10mm