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Stainless Steel Duolok Tube Fitting, 0.38 Inch Tube OD To 7/8-14 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

Description & Features

Crafted for precision and reliability, the Stainless Steel Duolok Tube Fitting is engineered to connect a 0.38-inch tube outer diameter to a 7/8-14 Male SAE O-Ring Boss. Its straight thread O-ring design ensures a secure, leak-proof connection in diverse instrumentation and process tubing systems. This fitting showcases a double ferrule design that accommodates variations in tubing materials and thickness, maintaining a tight seal across various applications.

Manufactured from type 316 stainless steel, these fittings are compliant with ASTM A-276 and ASTM A-479 standards, guaranteeing durability and corrosion resistance. The Duolok fittings are interchangeable with Swagelok® brand fittings, offering flexibility in system design and maintenance. With a design focused on gageability, they allow for sufficient pull-up during installation, ensuring optimal performance. For applications involving elevated temperatures or specialty fittings, detailed technical assistance is available.

SKU: ISSD6MCST10

Supplier Part Number (MPN): ISSD6MCST10

Alternate Part Numbers: C1GC98

Specifications

A 1.66	B 1.37	D 0.66	E 0.50	Brand Ssp Fittings Corp	Brand SSP Fittings Corp	Pack Size 1.00	UOM EA	Supplier Part Number ISSD6MCST10	T 0.38	Thread 1 7/8-14	Alternate Part Numbers Alternate Part Number C1GC98	Product Weight 0.18 lbs

Similar Products

Model Number	T	Thread 1	A	B	D	E	Price	Action
ISSD6MCST10 Stainless Duolok To ORB Fitting	0.38	7/8-14	1.66	1.37	0.66	0.5

Product Questions & Answers (2)

Question by: Sherry P on Nov 7, 2025, 10:32 AM

these fit in place of Swagelok fittings? got a system already running with those and need to swap one out without redoing the whole line

Answer by: Customer Support on Nov 9, 2025, 6:08 AM

Duolok fittings are manufactured to be fully interchangeable with Swagelok brand fittings, so dropping one in where a Swagelok currently sits is a straight swap. Same dimensions, same pull-up behavior during installation. No need to modify the surrounding components.

Question by: Jerry M on Aug 14, 2025, 5:55 PM

got a 3/8 tube run and need to tie into a 7/8-14 ORB port. is this the right straight fitting?

Answer by: Customer Support on Aug 15, 2025, 8:47 PM

For that tube-to-port hookup, this fitting is made to connect 0.38 inch tube OD on the Duolok double ferrule end to a 7/8-14 male SAE O-ring boss straight thread on the other end, in a straight body style.