---
product_id: 35742265
title: "Lamons Gasket Company R31 Oval-S Ring Type Joint, LCS Material, 5785 Heat No."
brand: "lamons gasket company"
price: "₨53801"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/35742265-lamons-gasket-company-r31-oval-s-ring-type-joint-lcs
store_origin: LK
region: Sri Lanka
---

# Lamons Gasket Company R31 Oval-S Ring Type Joint, LCS Material, 5785 Heat No.

**Brand:** lamons gasket company
**Price:** ₨53801
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Lamons Gasket Company R31 Oval-S Ring Type Joint, LCS Material, 5785 Heat No. by lamons gasket company
- **How much does it cost?** ₨53801 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/35742265-lamons-gasket-company-r31-oval-s-ring-type-joint-lcs)

## Best For

- lamons gasket company enthusiasts

## Why This Product

- Trusted lamons gasket company brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Lamons manufactures and supplies a large variety of ring joint gaskets. The RTJ standard size gaskets are manufactured in accordance to API-6A and ASME B16.20 specifications. Lamons is licensed by the American Petroleum Institute (API) as a level 4 high quality rating supplier. API ring Joint gaskets come in two basic types, an oval cross section (Style 377) and an octagonal cross section (Style 388). These basic shapes are used in pressures up to 10,000 psi. The dimensions are standardized and require specially grooved flanges. The octagonal cross section has a higher sealing efficiency than the oval and would be the preferred gasket. However, only the oval cross section can be used in the old type round bottom groove. The newer flat bottom groove design will accept either the oval or the octagonal cross section. The sealing surfaces on the ring joint grooves must be smoothly finished to 63 micro inches and to be free of objectionable ridges, tool or chatter marks. They seal by an initial line contact or a edging action as the compressive forces are applied. The hardness of the ring should always be less than the hardness of the flanges to prevent flange deformation. Dimensions for API ring joint gaskets and grooves are covered in ASME B16.20 and API6A. Lamons stocks a wide range of sizes and materials ready for immediate shipment from R11 to R105. Stock materials include large variety of metals.

## Features

- A.S.A and A.P.I Ring Number: R31
- Center to Center 4-7/8", Inside Diameter: 4-7/16"
- Outside Diameter: 5-5/16"
- Width of Ring: 7/16", Height of Ring: 11/16"
- Gasket Weight (lbs): 1.130

## Images

![Lamons Gasket Company R31 Oval-S Ring Type Joint, LCS Material, 5785 Heat No. - Image 1](http://ecx.images-amazon.com/images/I/41y3lyHwmYL.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.lk/products/35742265-lamons-gasket-company-r31-oval-s-ring-type-joint-lcs](https://www.desertcart.lk/products/35742265-lamons-gasket-company-r31-oval-s-ring-type-joint-lcs)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-12*