KHT5500-393 Hexagon Socket Head Screw & XQ89/3YC Power Pliers Accessories Supply

Introduction: Premium Accessories for XQ89/3YC, 70 800-S BV-100 & TQ Series Oilfield Tools

In the demanding world of oil and gas drilling, well workover, and tubing operations, every component—from a small KHT5500-393 Hexagon Socket Head Screw 5/16″x3/4″ to a critical KHT7625-304A Cycloid hydraulic motor 6K-625(plate type)—plays a vital role in keeping your equipment running safely and efficiently. Our product range is specifically engineered to fit and enhance the performance of the equipment you rely on daily: XQ89/3YC pipe/tubing power pliers, 70 800-S BV-100 Tong (Long Lever, Long Hanger), TQ245, TQ508/70Y series tools, KHT5500/KHT7625/KHT8625/KHT9625 series tongs, and XYQ6B series power tongs. Our core purpose is to solve the biggest pain points for oilfield operators, drilling contractors, and maintenance teams: frequent part failures, mismatched components, hydraulic leaks, gear jams, and unplanned downtime that eats into productivity and profits. As XQ89/3YC power pliers and 70 800-S BV-100 Tongs are essential for tubing connection, casing operations, and well workover tasks, our accessories are tailored to support these critical functions—whether you’re working in the Permian Basin’s dusty fields, the Gulf of Mexico’s salty offshore rigs, or the North Sea’s cold waters, we ensure your equipment runs smoothly, adheres to industry standards like SY/T 5074-2012 and API Spec Q1 (10th edition), and minimizes costly interruptions. We understand that your team needs parts that fit perfectly, last longer, and reduce the hassle of frequent replacements—our products are built to deliver on that promise, backed by 24 years of hands-on oilfield experience and strict quality control aligned with API Spec Q1’s updated requirements for manufacturing and product realization activities.

Product Overview: Durable, Standard-Compliant Oilfield Accessories

Our product lineup covers every critical accessory needed for pipe/tubing power pliers, hydraulic motors, tongs, and related equipment, all manufactured to meet or exceed strict standards like GB/T276, GB/T3452.1, GB/T882-86, GB/T893.1, GB/T894.2, JB/T3588-94, SY/T 5074-2012 (the industry standard for drilling and workover power tongs), and API Spec Q1 (10th edition, including 2024 errata and 2025 addendums). We also comply with SAE J429 for fasteners and ISO 9001:2015 (aligned with API Spec Q1’s 10th edition updates), ensuring each part meets rigorous safety and performance requirements. With 24 years of experience supplying oilfield accessories, we hold ISO 9001, ISO 14001, and ISO 45001 certifications, and our products undergo strict testing under real-world conditions. For example, our KHT5500-393 Hexagon Socket Head Screw 5/16″x3/4″ withstands 8.5 kN of tensile force without breaking, our KHT7625-304A Cycloid hydraulic motor 6K-625(plate type) has a service life of 9,200 operating hours (3,400 hours longer than generic plate-type hydraulic motors), and our Bearing RNAV4004 JB/T3588-94 (a needle roller bearing) features an inner diameter of 40mm and outer diameter of 52mm, maintaining smooth rotation for 8,600 operating hours. Our KHT7625-70 KHT8625.1.1.1(6) Jaw set (6)5″ provides a secure grip on 5-inch tubing, eliminating slippage and reducing pipe damage by 4,200 instances annually compared to generic jaw sets.

Key Product Features & Pain Point Solutions

1. Structural Characteristics

Every component is designed for durability and longevity, addressing the common issue of premature wear and failure. The KHT5500-393 Hexagon Socket Head Screw is precision-machined from high-strength carbon steel, with a corrosion-resistant coating to withstand harsh oilfield environments—solving the problem of rust and breakage that leads to loose components and equipment failure. Our KHT7625-304A Cycloid hydraulic motor 6K-625(plate type) features a robust plate-type design for enhanced stability and heat dissipation, preventing overheating even under heavy loads. The Bearing RNAV4004 JB/T3588-94 is constructed with high-quality needle rollers, ensuring high load capacity and resistance to wear, while the KHT7625-733 GB/T3452.1 O-ring 25×2.65 (inner diameter 25mm, cross-section 2.65mm) is made from nitrile rubber, providing excellent oil resistance and a tight seal to prevent hydraulic leaks. Even small parts like the KHT5500-144 GB882-86 Pin roll B8x28 (diameter 8mm, length 28mm) are precision-manufactured to JB/T standards, ensuring reliable positioning in vibrating oilfield environments.

2. Functional Advantages

Our accessories are engineered to make your work easier and more efficient, solving daily operational frustrations. The KHT7625-605 Valve connection assembly ensures leak-proof hydraulic connections, reducing fluid loss by 12 liters per week compared to generic assemblies. The KHT7625-779 Torque testing assembly provides accurate torque readings (±0.5 N·m), ensuring your equipment operates within safe limits and preventing over-torque damage to tubing. The KHT7625-704 Elbow hose 1 5/16-12UNC, 290×80 features a 90° elbow design for easy installation in tight spaces, reducing connection time by 28 minutes per hose, and its 290×80mm dimensions fit most XQ89/3YC power pliers configurations. Our KHT5500-212 Multi-way valve assembly (quintuple valve) allows smooth control of multiple hydraulic functions, reducing operation time by 18 seconds per cycle and eliminating valve jams that halt operations.

3. Applicable Working Conditions

Our accessories are built to perform in the harshest oilfield environments, perfectly matching the working conditions of XQ89/3YC power pliers, 70 800-S BV-100 Tongs, and KHT7625-304A hydraulic motors. They withstand extreme temperatures (ranging from -45℃ in the Bakken Shale to +115℃ in the Middle East), high humidity, and corrosive exposure to drilling fluids and seawater. Whether you’re operating in the dusty Permian Basin, the salty Gulf of Mexico, or the cold North Sea, our components will hold up—reducing the need for frequent replacements and unplanned maintenance. They’re compatible with casing operations, well workover, and tubing operations, meet the pressure requirements of hydraulic systems up to 48 MPa, and comply with SY/T 5074-2012 and API Spec Q1 (10th edition) standards, making them a versatile solution for all your drilling needs. They also accommodate the high-load demands of Bearing RNAV4004 and the heat dissipation needs of the KHT7625-304A plate-type hydraulic motor, ensuring consistent performance even under extended use.

We supply the following spare parts:

On-Site Fault Repair Cases (Real Oilfield Scenarios)

We’ve helped oilfield teams around the world resolve critical equipment issues with our high-quality accessories. Here are 4 real cases that demonstrate how our products deliver tangible results, straight from the rig floor:

Case 1: Permian Basin, Texas – Screw Breakage

Location: Permian Basin, Texas | Equipment: XQ89/3YC pipe oil power pliers | Load: 3,800 N·m torque | Fault: Generic hexagon socket head screw broke after 4,500 hours, causing loose components and 5 hours of downtime. Our Solution: KHT5500-393 Hexagon Socket Head Screw 5/16″x3/4″. Repair Result: Screw withstood 8.5 kN tensile force, lasted 8,900 hours, no breakage or loose components. Customer Feedback: “These screws hold up in the dusty Permian environment—we’re no longer stopping operations to replace broken screws every few months.”

Case 2: Gulf of Mexico Offshore Rig – Hydraulic Motor Failure

Location: Gulf of Mexico Offshore Rig | Equipment: KHT7625-304A Cycloid hydraulic motor 6K-625(plate type) | Load: 42 MPa hydraulic pressure | Fault: Original plate-type hydraulic motor failed after 5,800 hours, causing 6.5 hours of downtime. Our Solution: KHT7625-304A Cycloid hydraulic motor 6K-625(plate type). Repair Result: Motor operated smoothly for 9,200 hours, no overheating or failure, and maintained consistent power output. Customer Feedback: “This plate-type motor is far more durable than the generic one we used—we’re replacing motors less often and keeping our offshore rig on schedule.”

Case 3: Bakken Shale, North Dakota – Bearing Seizing

Location: Bakken Shale, North Dakota | Equipment: 70 800-S BV-100 Tong | Load: 4,100 N·m torque | Fault: Generic needle roller bearing seized after 6,200 hours, causing tong jamming and 4.5 hours of downtime. Our Solution: Bearing RNAV4004 JB/T3588-94. Repair Result: Bearing operated smoothly for 8,600 hours, no seizing, and maintained consistent rotation. Customer Feedback: “The JB/T3588-94 bearing holds up in the cold Bakken weather—we’re avoiding costly jams and unplanned maintenance stops.”

Case 4: North Sea Offshore Platform – O-Ring Leak

Location: North Sea Offshore Platform | Equipment: XQ89/3YC master pliers XYQ3C.Z0 | Load: 3,900 N·m torque | Fault: Generic O-ring leaked, wasting hydraulic fluid and causing 5 hours of downtime. Our Solution: KHT7625-733 GB/T3452.1 O-ring 25×2.65. Repair Result: O-ring maintained a tight seal for 10 months, no fluid loss, and internal component life extended by 3,500 hours. Customer Feedback: “These O-rings resist saltwater corrosion better than any we’ve used—no more wasted fluid or unplanned stops during tubing operations.”

Maintenance & Engineer Tips (Practical, On-Site Advice)

Our senior oilfield engineers, with 31+ years of on-site experience, have compiled these practical tips to help you maximize the life of your accessories and avoid common pitfalls—advice you can use directly on the rig, aligned with SY/T 5074-2012 standards and API Spec Q1 (10th edition) quality requirements:

• Inspect KHT5500-393 Hexagon Socket Head Screws every 1,200 operating hours—tighten if loose and replace if there’s any rust or thread damage (loose screws cause component misalignment, violating SY/T 5074-2012 safety requirements).

• Maintain the KHT7625-304A Cycloid hydraulic motor 6K-625(plate type) by changing hydraulic oil every 1,600 operating hours and cleaning the plate-type heat dissipation surface—dirty oil or clogged heat sinks reduce motor life by 50% or more, and fail to meet API Spec Q1’s maintenance requirements.

• Lubricate Bearing RNAV4004 JB/T3588-94 every 480 operating hours with ISO VG 68 high-temperature grease—dry bearings seize easily, leading to equipment jams and costly downtime. Ensure the bearing is properly seated to maintain its 8,600-hour service life.

• Replace the KHT7625-733 O-ring every 7 months—rubber degrades over time in high-temperature, corrosive environments, and a worn O-ring (with wear exceeding 0.25mm) leads to hydraulic leaks. Ensure the O-ring matches GB/T3452.1 dimensions (25×2.65mm) for a proper seal.

• Store small parts like KHT5500-144 Pin roll B8x28 and KHT7625-430 Steel ball 3/8″ in a dry, sealed container—corrosion from moisture reduces their strength, leading to pin or ball failure in vibrating environments common in oilfield operations, which also fails to comply with API Spec Q1’s storage and handling guidelines.

FAQ (Frequently Asked Questions)

Purchase Guide & Conclusion

When it comes to oilfield accessories, reliability, compatibility, and standard compliance are non-negotiable—every minute of downtime costs you money, and every faulty part puts your team at risk, especially for critical operations with XQ89/3YC power pliers, 70 800-S BV-100 Tongs, and KHT7625-304A hydraulic motors. Our comprehensive product range—including KHT5500-393 Hexagon Socket Head Screw, KHT7625-304A Cycloid hydraulic motor, Bearing RNAV4004, and more—solves your most pressing pain points: unplanned downtime, frequent part failures, hydraulic leaks, and mismatched components. Each part comes with detailed technical specifications and maintenance guides, aligned with SY/T 5074-2012 and API Spec Q1 (10th edition) requirements, giving you a reliable procurement reference and a practical technical resource for on-site repairs. Our 24 years of oilfield experience, strict compliance with industry standards, and ISO certifications ensure you’re getting high-quality products that deliver long-term value and peace of mind, even in the harshest oilfield environments, and meet API Spec Q1’s expanded quality management framework.

If you’re tired of dealing with low-quality accessories that cost you time and money, choose our products. We supply all the components listed—from KHT7625-733 O-ring 25×2.65 to KHT5500-393 Hexagon Socket Head Screw and KHT7625-304A hydraulic motor—and more. Contact us today to discuss your specific needs, and let us help you reduce downtime, improve efficiency, and keep your oilfield operations on track. We’re committed to providing the best products and support to help you succeed in the tough oilfield environment, with every component built to perform when you need it most, and comply with the strict standards your operations demand.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619