- Alpa Metrology FA285 (FA285112)- Manufacturer: Alpa
 - Threaded plug NPT ALPA FA285 Conical thread. Variation: FA285112 | Ø and pitch: 1" 1/2 - 11,5 Pontoglio, Italy
- Alpa Metrology FA285 (FA2851)- Manufacturer: Alpa
 - Threaded plug NPT ALPA FA285 Conical thread. Variation: FA2851 | Ø and pitch: 1" - 11,5 Pontoglio, Italy
- Alpa Metrology FA285 (FA2852)- Manufacturer: Alpa
 - Threaded plug NPT ALPA FA285 Conical thread. Variation: FA2852 | Ø and pitch: 2" - 11,5 Pontoglio, Italy
- Alpa Metrology FA285 (FA2853)- Manufacturer: Alpa
 - Threaded plug NPT ALPA FA285 Conical thread. Variation: FA2853 | Ø and pitch: 3" - 8 Pontoglio, Italy
- Alpa Metrology FA280 (FA280118)- Manufacturer: Alpa
 - NO GO threaded rings GAS ISO 228 ALPA FA280 Cylindrical thread. Pontoglio, Italy
- Alpa Metrology FA280 (FA280214)- Manufacturer: Alpa
 - NO GO threaded rings GAS ISO 228 ALPA FA280 Cylindrical thread. Pontoglio, Italy
- Alpa Metrology FA280 (FA280212)- Manufacturer: Alpa
 - NO GO threaded rings GAS ISO 228 ALPA FA280 Cylindrical thread. Pontoglio, Italy
- Alpa Metrology FA280 (FA280234)- Manufacturer: Alpa
 - NO GO threaded rings GAS ISO 228 ALPA FA280 Cylindrical thread. Pontoglio, Italy
- Alpa Metrology FA275 (FA275212)- Manufacturer: Alpa
 - GO threaded rings GAS ISO 228 ALPA FA275 Cylindrical thread. Pontoglio, Italy
- Alpa Metrology FA275 (FA27558)- Manufacturer: Alpa
 - GO threaded rings GAS ISO 228 ALPA FA275 Cylindrical thread. Pontoglio, Italy
- Alpa Metrology FA275 (FA2752)- Manufacturer: Alpa
 - GO threaded rings GAS ISO 228 ALPA FA275 Cylindrical thread. Pontoglio, Italy
- Alpa Metrology FA260 (FA260632)- Manufacturer: Alpa
 - GO threaded rings UNC ALPA FA260 In hardened steel. Tolerance 2A. Pontoglio, Italy
- Alpa Metrology FA260 (FA260832)- Manufacturer: Alpa
 - GO threaded rings UNC ALPA FA260 In hardened steel. Tolerance 2A. Pontoglio, Italy
- Alpa Metrology FA260 (FA2601126)- Manufacturer: Alpa
 - GO threaded rings UNC ALPA FA260 In hardened steel. Tolerance 2A. Pontoglio, Italy
- Alpa Metrology FA260 (FA2601213)- Manufacturer: Alpa
 - GO threaded rings UNC ALPA FA260 In hardened steel. Tolerance 2A. Pontoglio, Italy

