Part Number: 6900

SAE ORB Male x NPTF Pipe Female Swivel Adapter

Product Overview

The Delphi Fittings Part 6900 is a straight adapter designed to connect a female SAE O-Ring Boss (ORB) port to a male NPTF (National Pipe Taper Fuel / Dryseal) pipe or fitting, featuring the added convenience of a swivel nut on the NPTF female end. This adapter has a male SAE ORB thread for a secure O-ring seal on one side, and a female NPTF pipe thread with a swivel nut on the other. The swivel nut allows for easy alignment and tightening of the NPTF connection without needing to rotate the adapter body or the mating NPTF component, which is particularly helpful in confined spaces or when connecting to fixed piping. Manufactured from high-quality carbon steel and zinc-plated for corrosion resistance, the Part 6900 provides a reliable and adaptable solution for integrating ORB and NPTF threaded components.

Key Features & Specifications

Material	High-Grade Carbon Steel
End 1 Configuration	Male SAE O-Ring Boss (ORB) (per SAE J1926-1 / ISO 11926-1)
End 2 Configuration	Female NPTF Pipe Swivel Nut (Dryseal - ANSI B1.20.3 / SAE J476)
Body Style	Straight Adapter with Hex Body for wrench tightening.
Swivel Feature	NPTF female end features a swivel nut for ease of installation and alignment.
Sealing Mechanism	ORB End: O-ring (supplied with male ORB) seals against the boss in the female ORB port. NPTF End: Metal-to-metal seal on the tapered Dryseal threads with the mating male NPTF fitting; swivel facilitates alignment before sealing.
Corrosion Protection	Standard Zinc Plating for enhanced durability.
Primary Function	To connect a female SAE ORB port to a male NPTF pipe or fitting, with swivel capability on the NPTF female end.
Working Pressure	Suitable for high-pressure hydraulic applications. Specific ratings vary by size.
O-Ring Material (for ORB end)	Typically Buna-N (Nitrile) 90 Durometer. Other materials available upon request.

Commonly Available Sizes (Part #6900 Series)

Delphi Fittings offers the SAE ORB Male x NPTF Pipe Female Swivel Adapter in various common ORB and NPTF size combinations.

Examples include (Male ORB x Female NPTF Swivel):

6900-04-04: -04 (7/16-20) ORB Male x 1/4" NPTF Female Swivel
6900-06-06: -06 (9/16-18) ORB Male x 3/8" NPTF Female Swivel
6900-08-08: -08 (3/4-16) ORB Male x 1/2" NPTF Female Swivel
6900-10-10: -10 (7/8-14) ORB Male x 5/8" NPTF Female Swivel (Note: 5/8" NPTF is less common, verify thread)
6900-12-12: -12 (1-1/16-12) ORB Male x 3/4" NPTF Female Swivel
6900-16-16: -16 (1-5/16-12) ORB Male x 1" NPTF Female Swivel

Note: Always verify the specific ORB and NPTF sizes required for your application. For unlisted size combinations or if NPSM swivel is preferred for mechanical sealing, please contact our sales team.

Applications

The Part 6900 adapter is ideal for connecting ORB ports to male NPTF fittings where installation ease is important:

Connecting NPTF-threaded pipes, hoses, or components to ORB ports on hydraulic equipment, especially where space is limited or precise alignment of the NPTF component is needed before final tightening.
Integrating NPTF standard components into systems predominantly using SAE O-Ring Boss connections.
Mobile equipment, industrial machinery, and hydraulic power units requiring adaptable and easily installed connections.
Minimizing stress on piping or hoses during assembly due to the swivel action.

Installation & Usage Guidelines

Ensure all threads and sealing surfaces are clean, undamaged, and free from contaminants.
For the male ORB end, verify its O-ring is correctly sized, lubricated, and seated. Thread this end into the female ORB port and tighten to the recommended torque.
Align the female NPTF swivel nut with the male NPTF fitting. The swivel nut allows rotation for easy threading without turning the adapter body. While NPTF provides a dry seal, sealant on the male NPTF threads is often recommended, especially if it's a standard NPT male or for high pressures. Tighten the swivel nut to achieve a secure NPTF threaded seal.
Hold the adapter body with a wrench while tightening the swivel nut to prevent the ORB connection from loosening.

Why Choose Delphi Fittings Part 6900?

Simplified Installation: The NPTF female swivel nut allows for easy alignment and tightening without twisting connected components.
Reliable ORB Seal: The male ORB end ensures a high-integrity, leak-proof O-ring seal.
Secure NPTF Connection: Provides a strong tapered thread connection for male NPTF fittings.
Durable Construction: Manufactured from high-grade carbon steel for long service life.
Versatile Adaptation: Effectively bridges ORB and NPTF threaded systems.
Quality Manufacturing: Produced under Delphi Fittings' ISO 9001:2015 certified quality management system.

Get a Quote for Part 6900 - SAE ORB Male x NPTF Pipe Female Swivel Adapter

For convenient and reliable straight adapter connections from SAE O-Ring Boss ports to male NPTF fittings, the Part 6900 Swivel Adapter is an excellent choice. Contact Delphi Fittings for wholesale pricing, bulk order information, and expert assistance.

Request a Quote Back to ORB Fittings