1 3/8" UNC Go/No-Go Thread Ring Gauge 6 TPI, ANSI B1.1 2A - Metav IndustryLine

Take advantage of a compact, standards‑compliant check that reduces inspection time and keeps production within tolerance: the combination of hardened gauge steel and ANSI/ASME B1.1 conformity delivers dependable thread verification with low maintenance. Order the gauge directly via Metav Werkzeuge or consult our specialists for application advice.

Thread ring gauge UNC NOGO, 1 3/8" × 6 – Metav IndustryLine, ANSI B1.1, 2A

A Thread ring gauge UNC NOGO, 1 3/8" × 6 designed for quick go/no‑go checks of external UNC threads in production and incoming inspection, complying with ANSI/ASME B1.1 and tolerance class 2A

• Hardened gauge steel construction
• ANSI/ASME B1.1 threaded standard
• Tolerance class 2A accuracy
• NOGO ring for UNC 1 3/8" × 6 pitch

Ensure reproducible, standards‑based thread inspection

A reliable inspection routine begins with clear criteria. This thread ring gauge is manufactured to ANSI/ASME B1.1 and finished to tolerance class 2A, which means it provides objective pass/fail results for external UNC threads. Using a dedicated NOGO ring for the specified 1 3/8" × 6 pitch removes subjective judgement from the process: a NOGO condition indicates excess material beyond the allowed envelope. The result is a measurable reduction in false acceptances and rework, supporting traceable quality control without complex measurement routines.

Durable construction that keeps the line running

Made from hardened gauge steel, the gauge withstands repeated engagement while retaining its calibration envelope, so downtime for replacement or refurbishment is minimised. The NOGO design focuses inspection on maximum‑material condition, which is the decisive factor in many assembly and sealing applications; by catching oversize threads at the gauge stage, scrap rates and assembly failures are reduced. The compact form and modest weight also simplify handling at the inspection bench, allowing rapid checks during batch sampling or final inspection.

Simple integration into workshop and incoming‑goods workflows

A purpose‑built UNC NOGO ring facilitates fast, operator‑friendly checks that slot directly into existing QA processes. The straightforward go/no‑go result shortens cycle times compared with full form measurement while maintaining compliance with common industry standards. For production teams and purchasing departments alike, the gauge offers an efficient method to demonstrate conformity at delivery and to enforce supplier requirements on thread form, contributing to consistent assembly performance and fewer downstream quality issues.

Contact Metav Werkzeuge today to discuss how the Metav IndustryLine NOGO thread ring gauge can be specified for your inspection plan and to arrange supply from our Emmerich facility

Technical data

• Article number: M315.994
• GTIN: 4054469181158
• Label: Gewinde‑Lehrring UNC NOGO, 1.3/8 x 6 ANSI B1.1 / 2A
• Material: gauge steel, hardened
• Standard: ANSI/ASME B1.1/B1.2
• Tolerance class: 2A

Facts

• Thread size: 1 3/8"
• Pitch / TPI: 6
• Function: NOGO ring (external thread check)
• Weight: 0.6 kg

Special features

• NOGO check for maximum‑material condition
• Intended use: external UNC thread verification
• Robust, hardened construction for extended service life
• Compact format for bench and incoming‑inspection use

FAQ

What does the NOGO designation mean for this ring gauge?
The NOGO designation means the ring is intended to detect oversize (maximum‑material) conditions; the Metav IndustryLine Thread ring gauge UNC NOGO, 1 3/8" × 6 will fail on parts that exceed the allowable envelope, ensuring out‑of‑tolerance threads are identified.

Which standard does the gauge conform to?
This gauge is manufactured in accordance with ANSI/ASME B1.1, with the applicable tolerance class of 2A, providing a clear benchmark for UNC external thread acceptance.

What materials and applications are suitable for this gauge?
Constructed from hardened gauge steel, the ring is suitable for routine verification of external UNC threads used in mechanical assemblies, fasteners and components where adherence to thread form is critical.

How is the pitch indicated and interpreted?
The pitch is given as 6 threads per inch (TPI); the designation 1 3/8" × 6 therefore specifies a nominal diameter of 1 3/8 inches with a 6 TPI UNC profile, which the gauge checks against the accepted tolerance class.

Is the gauge suitable for production floor sampling?
Yes. The NOGO ring function and hardened construction of the Metav IndustryLine UNC NOGO ring make it well suited for rapid go/no‑go checks during production sampling and incoming‑goods inspection

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com