Sash vent latch

A contractor from Glenside, PA says:
Do you have anything comparable to this vent stop? Looks roughly 1-7/16" in length, 1/8" width (1/4" width on the face) and about 1/2" deep.

These are from older windows in the Philadelphia suburbs (MontCo)- the company doesn't exist anymore, but I believe they were from the late 80s to early 90s, square balance-operated units.
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Tom from SWISCO responded:

We do not sell this exact vent stop, unfortunately, but it is similar to our 26-338 . Do you think you could use this as a substitute? Look it over and see what you think.

How to Replace a Window Vent Latch
How to Replace a Window Vent Latch
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