--- product_id: 38397472 title: "Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes)" brand: "captain o-ring" price: "₱6122" currency: PHP in_stock: true reviews_count: 8 category: "Captain O Ring" url: https://www.desertcart.ph/products/38397472-captain-o-ring-orb-boss-hydraulic-fitting-sae-900-o store_origin: PH region: Philippines --- # 12 precise ORB/BOSS sizes -40°F to 250°F temp range 255 premium Buna-N o-rings Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) **Brand:** captain o-ring **Price:** ₱6122 **Availability:** ✅ In Stock ## Summary > 🔧 Seal like a boss — never get caught without the perfect O-ring! ## Quick Answers - **What is this?** Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) by captain o-ring - **How much does it cost?** ₱6122 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/38397472-captain-o-ring-orb-boss-hydraulic-fitting-sae-900-o) ## 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 - • **Precision Size Range:** 12 meticulously sorted sizes from -904 to -916 for perfect fit every time. - • **Organized & Ready-to-Use:** Compact case with individual compartments and size chart for instant access. - • **Durability Under Pressure:** Engineered to withstand extreme temps from -40°F to 250°F without fail. - • **Made in the USA with Warranty:** Quality you can trust, backed by Captain O-Ring LLC’s guarantee. - • **Complete Hydraulic Seal Solution:** 255 high-grade Buna-N o-rings for every ORB/BOSS fitting need. ## Overview The Captain O-Ring ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit offers 255 premium Buna-N (70 durometer) o-rings in 12 essential sizes, designed specifically for hydraulic ORB/BOSS fittings. With a robust temperature tolerance from -40°F to 250°F and a neatly organized case featuring a size chart, this USA-assembled kit ensures professional-grade sealing reliability and convenience for hydraulic maintenance and repairs. ## Description Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes): desertcart.com: Industrial & Scientific Review: Great alternative for spending a ton more at a local hydraulic shop. - Exactly what I needed for ORB hydraulics. As others have mentioned the case is great quality compared to others. Review: Good variety - Good selection at a reasonable price. Haven't had much use thus far but it's good knowing there's a stock of various o-rings onhand if anything arises. ## Features - Includes high quality BN70 (Buna Nitrile 70 durometer) o-rings - the most common o-ring material for hydraulic ORB/BOSS fittings due to it’s excellent sealing ability and resistance to oils and hydraulic fluid. Service temperature of -40F to 250F. - Includes all 12 BOSS/ORB o-ring sizes between -904 to -916. 255 total o-rings. - Used in sealing straight thread tube fittings (ORB / O-Ring Boss Type) in hydraulic equipment - O-Rings are conveniently sorted by size in individual compartments within the divider box with a convenient o-ring size chart included on the kit to quickly and easily size up and identify the o-ring you need. - Manufactured and Warrantied by Captain O-Ring LLC. Proudly assembled in the USA! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01BE5J23K | | Best Sellers Rank | #66,634 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #154 in O-Rings | | Brand | Captain O-Ring | | Brand Name | Captain O-Ring | | Color | Black | | Customer Reviews | 4.7 out of 5 stars 173 Reviews | | Manufacturer | Captain O-Ring LLC | | Material | Nitrile Rubber | | Material Type | Nitrile Rubber | | Model | BOSS255-BN70 | | Number of Pieces | 255 | | Part Number | BOSSKIT-255pcBN70 | | Set Name | 255 Piece ORB / BOSS Hydraulic BN70 O-Ring Kit | | Temperature Range | 2.5E+2 Degrees Fahrenheit | | UPC | 722589526572 | | Unit Count | 1 Count | ## Product Details - **Brand:** Captain O-Ring - **Manufacturer:** Captain O-Ring LLC - **Material:** Buna-N Rubber - **Temperature Range:** 2.5E+2 Degrees Fahrenheit - **UPC:** 722589526572 ## Images ![Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) - Image 1](https://m.media-amazon.com/images/I/61McUTf2fgL.jpg) ![Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) - Image 2](https://m.media-amazon.com/images/I/61IYRERvRSL.jpg) ![Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) - Image 3](https://m.media-amazon.com/images/I/717g8TlgbJL.jpg) ![Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) - Image 4](https://m.media-amazon.com/images/I/81kE6acXRoL.jpg) ![Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) - Image 5](https://m.media-amazon.com/images/I/71BO9vN4TzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great alternative for spending a ton more at a local hydraulic shop. *by C***N on March 27, 2026* Exactly what I needed for ORB hydraulics. As others have mentioned the case is great quality compared to others. ### ⭐⭐⭐⭐⭐ Good variety *by M***N on May 10, 2026* Good selection at a reasonable price. Haven't had much use thus far but it's good knowing there's a stock of various o-rings onhand if anything arises. ### ⭐⭐⭐⭐ recommend *by J***N on December 5, 2025* decent selection ## Frequently Bought Together - Captain O-Ring - ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes) - Captain O-Ring ORS/ORFS (for Flat Face Fittings) Hydraulic O-Ring Seal Kit (Buna 90 / BN90-180 Piece Kit) - Captain O-Ring Flange Seal (SAE Code 61/62) Hydraulic O-Ring Seal Kit (Buna 90 / BN90-55 Piece Kit) --- ## 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.ph/products/38397472-captain-o-ring-orb-boss-hydraulic-fitting-sae-900-o](https://www.desertcart.ph/products/38397472-captain-o-ring-orb-boss-hydraulic-fitting-sae-900-o) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-07-07*