Pipe Thread Ring Gauge Long Form Calibration Certificate No Material Tool Steel Dimension Type Inch Gauge Type Go/No-Go (Plus/Minus) Pitch Diameter 0.4903 (Go) 0.4859 (No-Go) Pitch Diameter - Go Member 0.4903 in Pitch Diameter - No-Go Member 0.4859 in Thread Class 2A Thread Size 1/4 In.-18 Thread Type NPSM Finish Uncoated Hardness RC 60-62 Included Certification Certificate of Accuracy with NIST Traceability Standards ASME B1.20.1 Tolerance Class XMRO413L26
| # | Attribute | Value |
|---|---|---|
| 1. | brand | VERMONT GAGE |

