--- product_id: 508963177 title: "Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit)" brand: "captain o-ring" price: "362 zł" currency: PLN in_stock: true reviews_count: 5 category: "Captain O Ring" url: https://www.desertcart.pl/products/508963177-captain-o-ring-ors-flat-face-hydraulic-o-ring-seal store_origin: PL region: Poland --- # 8 versatile flat face sizes 180 precision o-rings Made in USA, trusted quality Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) **Brand:** captain o-ring **Price:** 362 zł **Availability:** ✅ In Stock ## Summary > 🔧 Seal your success with precision and confidence! ## Quick Answers - **What is this?** Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) by captain o-ring - **How much does it cost?** 362 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/508963177-captain-o-ring-ors-flat-face-hydraulic-o-ring-seal) ## Best For - captain o-ring enthusiasts ## Why This Product - Trusted captain o-ring brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Legacy:** Backed by decades of Captain O-Ring expertise and a 1-year warranty for peace of mind. - • **Complete Seal Mastery:** 180 Buna Nitrile o-rings engineered for flawless hydraulic sealing. - • **Organized for Efficiency:** Shatterproof Flambeau case with size chart for quick, hassle-free selection on the job. - • **Durability Meets Precision:** 90 durometer hardness ensures superior resistance to hydraulic fluids and temperature shifts. - • **Size Flexibility On-Demand:** 8 essential flat face sizes from 1/4" to 1-1/2" cover every hydraulic fitting need. ## Overview The Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit offers 180 high-quality Buna Nitrile (90 durometer) o-rings in 8 flat face sizes, designed for reliable sealing in hydraulic equipment. Packaged in a durable, organized case and made in the USA, this kit combines industry-trusted materials and expert manufacturing to ensure long-lasting performance and easy on-site use. ## Description Captain O-Ring's 180 Piece ORS Hydraulic Buna90 (BN90) O-Ring Kit includes 8 sizes and 180 total o-rings. The kit includes #4 (1/4" Flat Face), #6 (3/8" Flat Face), #8 (1/2" Flat Face), #10 (5/8" Flat Face), #12 (3/4" Flat Face), #16 (1" Flat Face), #20 (1-1/4" Flat Face), and #24 (1-1/2" Flat Face) o-rings. This kit contains o-rings made of Buna Nitrile (90 durometer) material, also known as BN90 or NBR90. Buna 90 is a common material used in ORS Flat Face seal applications due to its resistance to many hydraulic fluids and its flexability/sealability in low temperatures. The included size chart on the front of the kit makes sizing up o-rings quick and effortless. O-Rings are conveniently sorted by size in a shatterproof Flambeau divider box. What to expect: This item includes 180 O-Rings in a Flambeau plastic divider case with "Captain O-Ring" branded packaging. Manufactured and warrantied against defect for one year by Captain O-Ring LLC. "Captain O-Ring" is a registered trademark of Captain O-Ring LLC. Note: These are round o-rings used in ORS Flat Face Fittings. The o-rings themselves are round and not flat. Review: Se ajusta a las conexiones hidráulicas - Exelente Review: I’ll be using these. They are common o-rings - Seems like good quality o-rings ## Features - Includes high quality Buna Nitrile (90 durometer) o-rings - Includes #4 (1/4" Flat Face), #6 (3/8" Flat Face), #8 (1/2" Flat Face), #10 (5/8" Flat Face), #12 (3/4" Flat Face), #16 (1" Flat Face), #20 (1-1/4" Flat Face), and #24 (1-1/2" Flat Face) o-rings - Used in sealing ORS Flat Face Hydraulic Fittings in hydraulic equipment - Manufactured and Warrantied by Captain O-Ring LLC, with decades in a sealing and chemical industry ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B8WN9QS | | Best Sellers Rank | 61,983 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 187 in O-Rings | | Brand | Captain O-Ring | | Colour | Black O-Rings | | Country Of Origin | USA | | Customer Reviews | 4.7 out of 5 stars 369 Reviews | | Manufacturer | Captain O-Ring LLC | | Manufacturer Part Number | ORSKIT-180pcBN90 | | Material | VITON 90 (255 Piece Kit) | | Model Number | ORSKIT-180pcBN90 | | Number of Pieces | 180 | | Set Name | Captain O-Ring 180 Piece ORS Hydraulic Buna90 (BN90) O-Ring Kit | | Unit Count | 1.0 count | | Unit count | 1.0 count | ## Product Details - **Brand:** Captain O-Ring - **Colour:** Black O-Rings - **Manufacturer:** Captain O-Ring LLC - **Material:** VITON 90 (255 Piece Kit) - **Unit count:** 1.0 count ## Images ![Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) - Image 1](https://m.media-amazon.com/images/I/71BuhzkKEYL.jpg) ![Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) - Image 2](https://m.media-amazon.com/images/I/71T85CvgetL.jpg) ![Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) - Image 3](https://m.media-amazon.com/images/I/71+S3ev6UXL.jpg) ![Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) - Image 4](https://m.media-amazon.com/images/I/71CtzBqO8SL.jpg) ![Captain O-Ring ORS Flat Face Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) - Image 5](https://m.media-amazon.com/images/I/718nMSVfJDL.jpg) ## Questions & Answers **Q: Hi, I have a corbin series 100 hydraulic door closer that leaks oil from the arm spindle, can I use this o-rings to reseal it?** A: Hello. If that device uses ORS/ORFS hydraulic fittings, then this would work for it. You may be able to look in the product's manual for information on the o-rings. Feel free to contact Captain O-Ring directly if you're able to find a part number or specs in the manual. We'd be happy to help with it. **Q: Is the width of these O-rings 0.07 inches?** A: Hello. Yes, that is the standard cross section (width) for ORS/ORFS o-rings. :-) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Se ajusta a las conexiones hidráulicas *by S***. on 23 April 2026* Exelente ### ⭐⭐⭐⭐⭐ I’ll be using these. They are common o-rings *by D***. on 30 March 2026* Seems like good quality o-rings ### ⭐⭐⭐⭐⭐ orings *by S***Y on 12 April 2026* looks good ## Frequently Bought Together - Captain O-Ring ORS/ORFS (for Flat Face Fittings) Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) - Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) - XBVV 1540 Pcs 32 Size O-Rings Kit Nitrile Rubber O Ring Assortment with 4 Hook Set for Various Car Auto Vehicle Repair Plumbing Pressure Washer Air or Gas Sealing Connections Resist Oil and Heat --- ## 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.pl/products/508963177-captain-o-ring-ors-flat-face-hydraulic-o-ring-seal](https://www.desertcart.pl/products/508963177-captain-o-ring-ors-flat-face-hydraulic-o-ring-seal) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-26*