Graco 113990 3/4-14 BSPT 316 Pipe Plug – Overview
The Graco 113990 3/4-14 BSPT 316 Pipe Plug is a genuine OEM stainless steel plug designed to seal unused BSPT ports in Graco diaphragm pump manifolds and assemblies. Its 316 stainless construction provides excellent corrosion resistance and long-term reliability in high-pressure fluid systems.
Compatible Machines
- Graco Husky Series Air-Operated Diaphragm Pumps – especially stainless steel / 316 SST variants such as Husky 716, for BSPT-configured manifolds. ([graco.com](https://www.graco.com/content/dam/graco/tech_documents/manuals/308/308981/historic/308981EN-ZAR.pdf?utm_source=chatgpt.com))
Key Features & Specifications
- Part Number: 113990, OEM Graco BSPT plug
- Thread Specification: 3/4-14 BSPT (British Standard Taper Pipe Thread)
- Material: 316 stainless steel for excellent corrosion resistance
- Function: Seals unused BSPT ports in manifolds or pump assemblies
- Prevents leaks and maintains system integrity in high-pressure applications
Installation & Maintenance
Tips for proper installation and maintenance of the 113990 BSPT stainless plug:
- Clean threads before installation to remove debris and inspect for damage
- Apply recommended BSPT thread sealant to ensure leak-free fit
- Tighten according to Graco torque specifications to avoid thread damage
- Inspect periodically during maintenance, especially in corrosive or high-pressure fluid systems
Frequently Asked Questions
The 113990 Pipe Plug seals unused BSPT ports in Graco diaphragm pump manifolds, preventing fluid leakage and ensuring system integrity. Its 316 stainless construction provides excellent corrosion resistance. ([graco.com](https://www.graco.com/content/dam/graco/tech_documents/manuals/308/308981/historic/308981EN-ZAR.pdf?utm_source=chatgpt.com))
It is used in Graco Husky Series Air-Operated Diaphragm Pumps, especially stainless steel / 316 SST variants like Husky 716, for BSPT-configured manifolds.
Using a non-OEM plug may result in improper sealing or thread mismatch. OEM Graco 113990 ensures correct BSPT fit, material compatibility, and reliable sealing.
Clean threads, apply recommended BSPT thread sealant, and tighten according to Graco torque specifications to ensure leak-free installation.
Why Choose OEM Stainless BSPT Pipe Plugs?
Using the genuine Graco 113990 3/4-14 BSPT 316 Pipe Plug guarantees proper fit, chemical compatibility, corrosion resistance, and reliable sealing for stainless steel diaphragm pump manifolds.
