ANSI Thread plug gauge NPT
10-07-023
Product Details
Title
NPT Thread Plug Gauge 1/8–1-1/2 | Taper Pipe Go No-Go Gauge Manufacturer Supplier
Description
NPT Thread Plug Gauge is a precision measuring tool designed for internal tapered pipe thread verification and sealing performance control. It offers a measuring range of 1/8" to 1-1/2", high-accuracy taper thread inspection according to ANSI/ASME standards, and a Go/No-Go limit design, making it suitable for oil & gas, hydraulic systems, and industrial piping. Manufactured from hardened tool steel, this tool provides reliable performance for inspection, machining, and quality control applications.
SKU Table
| Model / Art No | Thread Size | Accuracy | Resolution |
|---|---|---|---|
| Multiple SKUs (see below) | 1/8" – 1-1/2" NPT | ANSI/ASME NPT | N/A (limit gauge) |
Available Models (Full List)
| Thread Size | SKU |
|---|---|
| 1/8"×27 | M5109-NPT1827 |
| 1/4"×18 | M5109-NPT1418 |
| 3/8"×18 | M5109-NPT3818 |
| 1/2"×14 | M5109-NPT1214 |
| 3/4"×14 | M5109-NPT3414 |
| 1"×11.5 | M5109-NPT1115 |
| 1 1/4"×11.5 | M952635 |
| 1 1/2"×11.5 | M952636 |
Technical Specifications
- Product Name: NPT Thread Plug Gauge (Go/No-Go)
- Category: Pipe Thread Plug Gauge
- Range: 1/8" – 1-1/2"
- Accuracy: ANSI/ASME NPT standard
- Resolution: N/A (limit gauge)
- Material: Hardened tool steel
- Display: None
- Output: None
- Structure Feature:
- Go/No-Go double-ended design
- Tapered pipe thread (NPT 60° profile)
- Marking: size, tolerance, GO/NO-GO, serial number
- Precision ground taper for sealing verification
- Standard: ANSI/ASME B1.20.1 (NPT)
- Brand: Custom / OEM available
- Model / Art No: Multiple SKUs
Applications
This product is suitable for:
- Internal NPT thread inspection
- Sealing performance verification
- Pipe fitting and valve inspection
- Production quality control
It is widely used in:
- Oil & gas industry
- Hydraulic and pneumatic systems
- Industrial piping systems
- Energy and process industries
Selection Advice
- Recommended for users requiring tapered pipe thread inspection with sealing function verification
- For parallel pipe threads, consider BSPP (G thread) gauges
- For British taper threads, consider BSPT (R thread) gauges
- For external threads, consider NPT thread ring gauges
Key Features
- Designed for NPT tapered pipe thread standard (ANSI/ASME B1.20.1)
- Go/No-Go design for fast and reliable inspection
- Full marking including GO/NO-GO, tolerance, and serial number
- Each gauge supplied with calibration certificate (PDF traceable by serial number)
- Packaging: oiled, oil paper wrapped, plastic tube with barcode label
FAQ
1. What is the difference between models?
Models differ by thread size and TPI, all following NPT taper thread standards for sealing applications.
2. Accuracy vs Resolution — what applies here?
- Accuracy: Defined by ANSI/ASME NPT standard
- Resolution: Not applicable, as this is a limit gauge
3. Manual vs Digital — where does this product fit?
This is a manual Go/No-Go inspection tool, used for pass/fail validation of threaded connections.
4. Which industries typically use this product?
- Oil & gas
- Energy sector
- Hydraulic systems
- Industrial manufacturing
5. Is customization available?
Yes, customization options include:
- Special NPT sizes or tolerance requirements
- OEM branding and labeling (barcode, serial system)
- Calibration certificate formats (digital + printed)
- Packaging customization