SS-4-TA-7-4 | Swagelok | Female Tube Adapter, 1/4″ Tube OD, 1/4″ Female NPT. Swagelok SS-4-TA-7-4. Is Swagelok SS-4-TA-7-4 not the part you are wanting?. Female Tube Adapter. Local pick up can be arranged at our Hunter Valley location.