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I have decided to use the LDI sight glass mentioned in the old manual rather than roll my own - and no arguments about the glass. These things wouldn't be out of place in a 1960s Russian submarine and any accident that breaks the glass is likely to be un-survivable!
The fitting is 1/2"-20 UNF and I need to bush down to 1/8" NPT. From what I can make out, the 1/4" NPT is closest but is probably a bit too large and is 18tpi. Any idea of the fittings I can use for this?
EDIT: DISREGARD - I'M STUPID. JUST REALISED I HAVE THE -607 MODEL WHICH HAS 1/4NPT FITTING .......
The fitting is 1/2"-20 UNF and I need to bush down to 1/8" NPT. From what I can make out, the 1/4" NPT is closest but is probably a bit too large and is 18tpi. Any idea of the fittings I can use for this?
EDIT: DISREGARD - I'M STUPID. JUST REALISED I HAVE THE -607 MODEL WHICH HAS 1/4NPT FITTING .......