121 3/8 belongs to the Coupling UNI ISO 6150 B-12 female-M BSP family in DICSA’s Mini-serie uni ISO 6150 B-12 technical documentation.
This pneumatic quick-release family is identified by its catalog series. The coupling interface and the rear connection are separate features: threaded and push-on variants share a family designation but have different installation connections. Use the series and technical drawing to identify the mating part.
The catalog groups this component under Screwed. The model table specifies R1, L, HEX 1. These designations should be read together with the dimensional drawing when matching the component to the adjoining tube, fitting or mounting arrangement.
Thread designations are listed by connection position; matching nominal size also requires the same thread form and sealing geometry.
Catalog coverage: the model code appears in the technical sheet. technical drawing and model data.
