- Alpa Metrology FA286 (FA286116A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA286116A | Ø and pitch: 1/16" - 27 Pontoglio, Italy
- Alpa Metrology FA286 (FA2862A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA2862A | Ø and pitch: 2" - 11,5 Pontoglio, Italy
- Alpa Metrology FA286 (FA286212A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA286212A | Ø and pitch: 2" 1/2 - 8 Pontoglio, Italy
- Alpa Metrology FA286 (FA28618A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA28618A | Ø and pitch: 1/8" - 27 Pontoglio, Italy
- Alpa Metrology FA286 (FA28612A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA28612A | Ø and pitch: 1/2" - 14 Pontoglio, Italy
- Alpa Metrology FA286 (FA286114A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA286114A | Ø and pitch: 1" 1/4 - 11,5 Pontoglio, Italy
- Alpa Metrology FA286 (FA2861A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA2861A | Ø and pitch: 1" - 11,5 Pontoglio, Italy
- Alpa Metrology FA286 (FA2863A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA2863A | Ø and pitch: 3" - 8 Pontoglio, Italy
- Alpa Metrology FA286 (FA28614A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA28614A | Ø and pitch: 1/4" - 18 Pontoglio, Italy
- Alpa Metrology FA286 (FA28638A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA28638A | Ø and pitch: 3/8" - 18 Pontoglio, Italy
- Alpa Metrology FA286 (FA286112A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA286112A | Ø and pitch: 1" 1/2 - 11,5 Pontoglio, Italy
- Alpa Metrology FA286 (FA28634A)- Manufacturer: Alpa
 - Threaded rings NPT ALPA FA286 Conical thread. Variation: FA28634A | Ø and pitch: 3/4" - 14 Pontoglio, Italy

