Faston 0.25" female-to-female adapter
The 61810-2 is a non-insulated brass adapter in TE's Faston series, joining two 0.25" (6.35mm) female quick-connect terminals back-to-back. Tin-plated contacts resist corrosion in moderate environments; bulk packaging suits bench and repair work where loose parts are preferred over tape-and-reel.
Same-series adapter alternatives
The 61765-2 and 61765-1 are side-by-side male terminal adapters in the same Faston series, also tin-plated brass in bulk — they convert a single 0.25" female to two 0.25" male tabs, not a female-to-female pass-through. The 61045-2 uses a 0.187" (4.75mm) quick-connect interface on both ends, so it serves a different tab width.