No. 2 x 56 Thread Go/No-Go Ring Gauge UNC NOGO, Hardened Gauge Steel ANSI/ASME B1.1 2A - Metav IndustryLine

Combine the hardened gauge‑steel construction with ANSI/ASME B1.1 conformity and 2A tolerance to secure reliable go/no‑go control of UNC No. 2 × 56 threads; order the ring gauge directly via Metav Werkzeuge or consult our specialists for selection and supply.

NOGO ring gauge No. 2 × 56 UNC — hardened limit ring for external thread verification (Metav IndustryLine)

The NOGO ring gauge No. 2 × 56 UNC is a hardened limit gauge designed for fast, repeatable inspection of external UNC threads to ANSI/ASME B1.1/B1.2 with tolerance class 2A, suitable for shop‑floor and QA use.

• Hardened gauge steel construction
• Conforms to ANSI/ASME B1.1/B1.2
• Tolerance class 2A for reliable control
• NOGO function for rapid pass/fail checks

Reliable thread control to reduce rework and downtime

The NOGO ring offers a straightforward, standards‑based check that removes ambiguity from thread acceptance. Machined from hardened gauge steel, the gauge resists wear and maintains dimensional stability during repeated use, which translates into fewer false rejects and less rework. Conformity with ANSI/ASME B1.1 ensures compatibility with common UNC specifications, while the 2A tolerance class provides the defined limit necessary for quality control of externally threaded components. This combination supports tighter production control and predictable inspection outcomes.

Fast, shop‑floor compatible inspection for production flow

Designed as a compact, robust limit ring, the tool enables quick go/no‑go decisions directly at the production line or in the inspection bay. The NOGO function speeds up checks by eliminating time‑consuming measurements when a simple pass/fail decision is sufficient, improving throughput without sacrificing traceability. Its lightweight, hand‑operable form factor suits repetitive checks and handheld verification, while the hardened material and straightforward geometry reduce the need for frequent replacement, contributing to long‑term operational efficiency.

Audit‑ready specification and supply reliability

The gauge is supplied with clear identification (GTIN and SKU) and a traceable standard reference, which eases documentation within quality management systems. As a metrology tool listed under gauges and inspection instruments, it integrates naturally into inspection routines and inspection plans that reference ANSI/ASME B1.1/B1.2. Sourcing via Metav IndustryLine provides the additional reassurance of a European distribution channel with established stock and logistical support, supporting continuous supply for production and spare‑part planning.

Contact Metav Werkzeuge for tailored advice on integrating this Metav IndustryLine NOGO ring gauge into existing inspection plans and to confirm availability and delivery options

Technical Data

• Article number: M315.972
• GTIN: 4054469180625
• Material: hardened gauge steel
• Standard: ANSI/ASME B1.1/B1.2
• Designation: NOGO ring gauge, UNC No. 2 × 56, tolerance 2A

Facts

• Threads per inch: 56
• Tolerance class: 2A
• Weight: 0.1 kg
• eClass: 21170214

Special features

• NOGO limit ring gauge
• Hardened gauge steel construction
• For external UNC thread inspection
• Category: Gauges / Measuring instruments

FAQ

What is the primary purpose of this ring gauge?
The ring serves as a NOGO limit gauge for quick pass/fail verification of external UNC threads, confirming whether a No. 2 × 56 UNC thread exceeds the specified limit.

Which standards does the gauge reference?
This gauge is manufactured to the ANSI/ASME B1.1/B1.2 thread form and is marked for tolerance class 2A appropriate for external thread control.

How is a NOGO ring used in practice?
The ring is placed over the external thread; if the ring does not enter, the thread is within the allowed maximum material condition. If the ring enters, the thread fails the NOGO requirement and further assessment is needed.

Is the material durable for repeated shop‑floor use?
Yes, the gauge is made from hardened gauge steel, designed to resist wear and preserve the inspection limit across many cycles of inspection.

How is traceability provided for quality documentation?
The product is supplied with clear identification (GTIN and article number) to support traceability in inspection plans and quality records

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