McMaster Carr 1 1/4-11 1/2 NPT L-1 Thread Plug – Tapered
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Description
The McMaster Carr 1 1/4-11 1/2 NPT L-1 Thread Plug is a specialized tool designed for use in threaded pipe systems. This plug features a tapered design, allowing for a secure and tight fit within the pipe’s internal threads. The 1 1/4-11 1/2 NPT refers to the specific size and pitch of the threads, ensuring compatibility with corresponding pipes and fittings. The L-1 classification indicates that this plug meets the stringent standards set by the American National Pipe Thread taper thread gauge. With its high-quality construction and precise measurements, the McMaster Carr 1 1/4-11 1/2 NPT L-1 Thread Plug is an essential tool for maintaining the integrity and functionality of threaded pipe systems.
Specifications
- Manufacturer: McMaster-Carr
- Type: NPT Thread Plug
- Thread Size: 1 1/4″ – 11 1/2 TPI (threads per inch)
- Thread Standard: NPT (National Pipe Tapered thread)
- L-1 Specification: L-1 tolerance for checking thread gauge accuracy
- Thread Type: Tapered
- Material: High-strength, durable material (typically steel or stainless steel)
- Use Case: Used for checking the accuracy and fit of internal NPT threads
- Application: Suitable for industrial applications such as plumbing, gas lines, and pressure fittings
- Precision: Manufactured to tight tolerances for precise measurement
- Durability: Designed for repeated use in inspection and quality control processes
- Conformance: Meets ASME/ANSI B1.20.1 standards for tapered pipe threads
- Usage: Used as a reference tool in thread inspection, ensuring compliance with thread standards
- Compatibility: Compatible with NPT fittings of the corresponding size
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Our Capabilities
Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.
Electrical
Micro Precision accredited electrical calibration lab services with multimeter, multifunction calibrator, oscilloscope, and power supply capabilities.
Optical
Micro Precision accredited optical, light, and fiber optic calibration lab services.
Thermodynamics & Chemical
Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.
RF - Microwave
Micro Precision accredited RF & microwave calibration lab services.
Mechanical & Dimensional
Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.
Laboratory Standards
Calibration laboratory standards are critical for your organization’s most accurate measurements.
Semiconductor Calibration
Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.


