Close Menu
Plugs

531 Aluminum R.F.O.® Plug

This R.F.O. plug is designed to apply radial force only on an installation hole. This plug can be used to seal openings in thin shells as well as fragile materials. It is engineered to fit into passages without the need for a support shoulder and there is no downward pressure during installation. The R.F.O. plug is installed using The Lee Company’s hydraulic installation tool. Sizes range from 0.156 to 0.875 inches.

Key Product Facts
  • Plug Diameter:0.531 inches
  • Max. Sealable Passageway Diameter:0.531 inches
  • Proof Pressure:3500 psi
  • Plug Material:Aluminum
  • Housing Material:Aluminum

Product Information

General Performance
 Class 2 Class 3
Proof Pressure (psi x 1000) 2.5 3.5
Materials
PART MATERIAL SPECIFICATION FINISH
Pin 2024-T4 or T351 Aluminum SAE AMS-QQ-A-225/6 Alodine Yellow per MIL-DTL-5541
Plug 2024-T4 or T351 Aluminum SAE AMS-QQ-A-225/6 Anodize Green per MIL-A-8625 Type II B
Electrical Operation

For dimensions, please refer to the Part Numbers & Specifications tab.

Part Numbers & Specifications

This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.

Image Specifications
Dimensional View
Installation Hole Details
Part Numbers & Specifications
Part Number D Max. D Min. C Nom. M Nom. MM Nom. K Nom. L Nom. X Y Z Weight (g) A Min. B Min. Ream Dia.
Class 2
Ream Dia.
Class 3
Request Information
PLRA5310010A 0.5312 0.5303 0.87 0.5 0.72 0.485 0.375 0.250-28 0.39 0.216-28 5.2 0.4 0.13 0.5312 - 0.5327 0.5312 - 0.5317 Request
All dimensions are in inches. This information is for reference only.

Installation & Accessories

Replacement Parts & Accessories
Part Number Description
CUTX0100000B Hydraulic Installation Tool
CUTA5315205A Installation Tool Set
CUTA5316205B Extraction Tool Set
PLRA5410010A R.F.O Oversize Plug

CAD Envelopes

Get in touch

Questions?

From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.