1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) 1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) (pack of 1)

Accu Product Code (APC): 4644-1A14

Images shown for graphic representation. Not to scale.

1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) 1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) (pack of 1)

Accu Product Code (APC): 4644-1A14

Key Features

Certified Precision - Certificate of Conformity Supplied As Standard.
1 Year Extended Warranty.
Free Technical Support From Our Engineers.

Show All Sizes & Materials

3D CAD Model Downloads: Details .

Simple 90 Day Returns Details.

1 Year Warranty Details.

Official Insize Measuring Tools Product.

Buy More & Save

/ Each Pack of
Exc. VAT
Price Exc. VAT

All prices below Exc. VAT

Minimum order quantity: Maximum order quantity:

This component is

Discontinued

Find Alternatives

This component is

Out of Stock

This component is

Available Offline

Manufactured For Your Order

It's prime for engineers.

Show All Sizes & Materials

Accu Product Code (APC): 4644-1A14
Thread Size: 1/2-14 NPT
Hand: Right Hand
Gauge Type: Go
Brand/Series: Insize 4644
Provided Calibration: Uncalibrated
Manufacturing Standard: ANSI/ASME B1.20.1
Material: Steel
Material Family: Steel
Provided Certification: Insize Inspection and Warranty Certificate
Suitable for UKAS Calibration: No
System of Measurement: Imperial
Thread Pitch: 14 TPI
Weight per 100 Units: 13.8 kg

Download Tech Spec

See a problem with this specification?

1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) Description

The 1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) has the following features:

Brand/Series: Insize 4644
Gauge Type: Go
Hand: Right Hand
Manufacturing Standard: ANSI/ASME B1.20.1
Steel
Steel Material Family
Provided Calibration: Uncalibrated
Provided Certification: Insize Inspection and Warranty Certificate
System of Measurement: Imperial
Thread Pitch: 14 TPI
Thread Size: 1/2-14 NPT

Discover more about the Pipe Plug Thread Gauges range.

Pipe Plug Thread Gauges are precision-engineered tools used to inspect and verify the accuracy of internal pipe threads. These gauges are designed to match standardised thread profiles such as BSP (British Standard Pipe), NPT (National Pipe Thread) and other pipe thread standards. They ensure that tapped threads in pipe fittings, valves and connectors meet strict dimensional tolerances, guaranteeing reliable and leak-free connections.

How Pipe Plug Thread Gauges Work

Pipe Plug Thread Gauges are used to assess the quality of internal pipe threads by threading the gauge into the tapped component. The "Go" gauge fits smoothly into the thread, confirming that it meets the minimum size requirement. This check system is essential for quality control in industries such as plumbing, oil and gas, and industrial manufacturing, where precise thread tolerances are critical to prevent leaks or failures. These gauges are often used to verify the threads in pipe fittings and hydraulic connectors to ensure safe and secure assembly.

What Material Pipe Plug Thread Gauges are Made From

Pipe Plug Thread Gauges are typically made from hardened tool steel or high-grade alloy steel. These materials are selected for their durability, wear resistance and ability to maintain dimensional accuracy under frequent use. The hardened construction ensures the gauges can withstand rigorous testing.

What Size and Type of Pipe Plug Thread Gauges are Available

Pipe Plug Thread Gauges are available in a wide range of sizes to match standardised pipe thread specifications. These include gauges for common pipe thread types such as BSP, NPT and other national and international standards. Both "Go" and "No-Go" gauges are required for thorough inspection, ensuring that threads meet both minimum and maximum tolerances. Each gauge is engineered to deliver consistent and reliable results, making them indispensable for quality assurance in pipe fitting and manufacturing processes.

FAQs

Q: What is the purpose of Pipe Plug Thread Gauges?

A: These gauges ensure that internal pipe threads conform to standard specifications, guaranteeing leak-free and secure connections in piping systems.

Q: What is the difference between BSP and NPT threads?

A: BSP threads have a Whitworth thread form with a 55-degree angle, while NPT threads have a tapered profile with a 60-degree angle, commonly used in American standards.

Q: Can these gauges inspect existing threaded components?

A: Yes, Pipe Plug Thread Gauges can verify the accuracy of both new and existing internal threads to ensure compliance with the relevant standards.

Shipping Information

Shipping Destinations:

Worldwide view delivery information

Weight (100 items):

13.8kg

Component History

Product First Available:

Friday, March 31, 2017

Stock Last Updated:

12:35 AMThursday, June 4, 2026

Specification Last Updated:

Wednesday, June 3, 2026

Barcodes

APC (Accu Product Code):

4644-1A14

EAN13 (International Article No.):

5057196763825

ASIN (Amazon Stock Identification No.):

ASIN not defined.

3D CAD Model Downloads

It will be automatically recharged within 24 hours. If you would like more downloads or need help please contact us

See a problem with this CAD Model?

Sorry, this is not available online right now.

To request a CAD Model please provide the following:

Name

Thank you for requesting a 3D CAD Model.

We aim to get back to you within 2 working days.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Customers Also Shopped For.

Product Certifications.

Certificate of Conformity Included

RoHS Certified

REACH Certified

Not Certified For Use In Construction Projects

ISO9001
Quality Approved

Your Daily Download Limit Has Been Reached.

It will be automatically recharged within 24 hours. If you would like more downloads or need help please contact us.

Report A Product Specification Or CAD Error.

Thread Size

Hand

Gauge Type

Brand/Series

Provided Calibration

Manufacturing Standard

Material

Material Family

Provided Certification

Suitable for UKAS Calibration

System of Measurement

Thread Pitch

CAD Error:

Is there anything else you'd like us to know?

Email Address (so we can let you know when it's fixed)

Get A Quote By Email. Quote Successful.

YOUR PRODUCT

1/2-14 NPT - Go Plug Thread Gauge (Insize 4644).

Minimum quantity required for a quote:

Thank you for requesting a quote.

We aim to get back to you within 2 working days.

Submit Another Quote.

1 How Many Do You Need?

Minimum quote quantity:

We have the quantity you need in stock. Add the product straight to your cart below. ( each)

2 Getting in Touch

Your Name

Company Name

Company Email Address

Company Phone Number

3 Tell Us More We'd love to hear your plans

Industry

Delivery Country

Other Details Max 500 characters.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Destination	Available Services
	Morning Express (Before Noon)	Saturday Express

Out Of Stock

Out Of Stock

1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) 1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) (pack of 1)

1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) 1/2-14 NPT - Go Plug Thread Gauge (Insize 4644) (pack of 1)

Purchased