Heavy-gauge ring terminal for 4 AWG power circuits
The R22-10 is the 4 AWG, 3/8 stud member of JST's non-insulated flat-sided ring terminal line. The brazed-seam barrel accepts a 4 AWG conductor and is crimped for a gas-tight connection; the 0.071" (1.80mm) thick tongue mates with a 3/8 stud.
Functional match to R22-10(NJ) — same dimensions, same stud
The R22-10(NJ) shares the same 3/8 stud size, 0.650" (16.50mm) outer width, 1.445" (36.70mm) overall length, 0.071" (1.80mm) thickness, non-insulated body, brazed seam, and 4 AWG wire gauge — the two are dimensionally and functionally interchangeable.
