1 3/8" UNEF Thread Go/No-Go Ring Gauge 18 TPI Right-Hand ANSI B1.1/B1.2, Hardened Gauge Steel - Metav IndustryLine

Taking fast, standards-based decisions in thread inspection becomes straightforward with a compact, durable NOGO ring gauge that matches ANSI tolerances and resists wear. Rely on the combination of compliance with ANSI/ASME B1.1, hardened gauge steel construction and clear pass/fail checking for fewer rejects and faster throughput. Order the thread ring gauge directly via Metav Werkzeuge or contact our consultants for specification advice.

Thread ring gauge UNEF NOGO, 1 3/8" x 18 TPI, 2A — NOGO external thread ring gauge (Metav IndustryLine)

A Thread ring gauge UNEF NOGO, 1 3/8" x 18 TPI, 2A for quick go/no-go verification of external UNEF threads in production control and incoming inspection processes.

• NOGO check for UNEF 1 3/8" x 18 TPI
• Hardened gauge steel construction
• ANSI/ASME B1.1 compliant thread form
• Right-hand thread, tolerance 2A

Immediate, unambiguous pass/fail inspection to speed production

A NOGO ring gauge delivers direct, binary inspection results that eliminate subjective assessment. By checking whether an external thread exceeds the maximum material condition, the NOGO function reduces false accepts and ensures only parts within the 2A tolerance proceed. Conformity with ANSI/ASME B1.1 provides a recognised reference for procurement and audits, while the 18 TPI geometry and nominal size 1 3/8" match common UNEF threads used in hydraulic fittings and mechanical assemblies.

Robust construction for durable, repeatable checks

Manufactured from hardened gauge steel, the ring is engineered to resist wear from frequent use and maintain dimensional integrity over time. The right-hand thread form and precision-ground surfaces give consistent engagement and withdrawal behaviour, supporting repeatable tactile checks on the shop floor. The compact mass (0.6 kg) keeps handling comfortable for handheld inspection while providing sufficient mass for stable seating during the check.

Integrates with inspection workflows and traceability systems

Designed as a hand-operated verification tool, the gauge supports fast routine checks at the line or in the inspection bay, reducing measurement cycle time compared with full metrological analysis. The clear NOGO criterion simplifies documentation in quality records; the article is identifiable by SKU M315.994.EF and GTIN for stock and traceability. Using this ring gauge streamlines go/no-go decisions and helps maintain consistent quality across batches.

Standards conformity that builds confidence in component quality

Compliance with ANSI/ASME B1.1/B1.2 and the defined 2A external thread tolerance gives purchasing and quality teams an objective basis for acceptance criteria. The compact, single-purpose gauge minimises operator interpretation and supports incoming inspection, in-process control and final acceptance routines. For workshops and production plants seeking straightforward conformity assurance, this NOGO ring gauge offers reliable performance and measurable risk reduction.

Discuss standards-compliant thread gauges with Metav Werkzeuge to specify or reserve the M315.994.EF — phone +49 2822 7131930 or email info@metav-werkzeuge.com for detailed product information and supply options

Technical Data

• Article number: M315.994.EF
• GTIN: 4054469181165
• Label: Gewinde-Lehrring UNEF NOGO, 1.3/8 x 18 ANSI B1.1 / 2A
• Material: Hardened gauge steel

Facts

• Nominal size: 1 3/8"
• Threads: 18 TPI
• Tolerance class: 2A
• Weight: 0.6 kg

Special features

• NOGO thread ring gauge
• Right-hand thread
• Standard: ANSI/ASME B1.1/B1.2

FAQ

What does NOGO mean for this thread ring gauge?
A NOGO ring gauge indicates whether an external thread exceeds the maximum material condition; the Thread ring gauge UNEF NOGO, 1 3/8" x 18 TPI, 2A is used to reject oversize threads quickly and unambiguously.

Which standards does the gauge comply with?
The gauge is manufactured to the ANSI/ASME B1.1/B1.2 thread form and tolerance principles; the product label and technical data reference these standards for audit and procurement purposes.

Is the gauge suitable for production-line checks?
Yes, the hardened construction and clear go/no-go criterion make the ring gauge suitable for routine production and incoming inspection tasks where fast decisions are required.

How is repeatability ensured over time?
Repeatability is supported by the hardened gauge steel material and precision grinding that minimise wear; regular inspection intervals are recommended to verify continued conformity.

What identification is provided for stock control?
The gauge is listed with SKU M315.994.EF and GTIN 4054469181165, enabling straightforward inventory management and traceability.

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