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MTA-BRLK-SSLK-RA-RB-Series

OMEGALOK Adaptors, Fittings & Bushings

Models In Stock
  • Standard Dimension Adaptors and Reducing Bushings
  • Ferrule Design for Positive Pressure Seal
  • Convert NPT Thread to BSPP or BSPT Thread or Vice Versa
  • Rugged Designs
MTA-BRLK-SSLK-RA-RB-Series
From $ 8.49
Models In Stock
OMEGALOK Adaptors, Fittings & Bushings MTA-BRLK-SSLK-RA-RB-Series MTA-BRLK-SSLK-RA-RB-Series
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Product Overview
  • Diameter 0 mm
  • Mounting Orientation Straight
  • Process Connection Type Compression Fitting
  • Series ID MTA-BRLK-SSLK-RA-RB-Series

Supported Applications

The Omega OMEGALOK Adaptors, Fittings & Bushings series provides connection solutions for protection tubes and probes. The product line includes Standard Dimension adaptors, reducing bushings, compression fittings, metric thread adaptors, and Metric OMEGALOK® Compression Fittings designed to convert imperial and metric threads.

Operating Conditions & Performance

The series is constructed from brass, stainless steel (316 SS), and carbon steel. Specific dimensional parameters vary by model; for example, the "ADAPTORS AND BUSHINGS" table lists lengths ranging from 1.09 inches to 2.16 inches with across hex flats between 7/8 inch and 1 5/8 inches depending on thread size. The "OMEGALOK® COMPRESSION FITTINGS" table specifies protection tube outer diameters (OD) from 1/16 inch to 1/2 inch, with lengths ranging from 24.6 mm (0.97 inch) to 49.3 mm (1.94 inch). Metric OMEGALOK® Compression Fittings support protection tube ODs of 3.0 mm, 4.5 mm, 6.0 mm, and 8.0 mm.

Configuration Options

The series supports a wide range of configurations across four primary product families:

  • Adaptors and Bushings (RA/RB Series): Includes reducing adaptors with NPT male/female threads ranging from 1/8 to 1 inch, and reducing bushings. Materials include brass (-BR), stainless steel (-SS), and carbon steel (*-CS) for larger sizes such as the RB-114-34-CS*.
  • OMEGALOK® Compression Fittings (BRLK/SSLK Series): Designed for protection tube ODs from 1/16 to 1/2 inch with male NPT threads. Available in brass and 316 stainless steel.
  • Metric Thread Adaptors (MTA Series): Converts between Female NPT, Male BSPT* (ISO 228/1, BS 2779), and other thread types. Models include MTA1 through MTA4 series with sizes from 1/8 to 1 inch.
  • Metric OMEGALOK® Compression Fittings: Supports metric protection tube ODs (3.0 mm, 4.5 mm, 6.0 mm, 8.0 mm) connecting to NPT threads or BSP Taper/Parallel threads (BSPT/BSPP).

Ferrules: Replacement ferrules are available in packages of 10 for tube ODs from 1/16 to 1/2 inch. Materials include brass, stainless steel, and PTFE.

Key Product Differences

Variants differ by material composition, thread standard, and protection tube compatibility:

  • Material Options: Models are designated as Brass (-BR), Stainless Steel (316 SS or -SS), Carbon Steel (*-CS*), or PTFE. Note that PTFE ferrules can only be used with stainless steel compression fittings.
  • Thread Standards: The series covers NPT, BSPT* (ISO 228/1, BS 2779), and BSP Parallel threads. Metric thread adaptors facilitate conversion between these standards.
  • Model Numbering: Model numbers encode the function and material; for example, BRLK-14-14 indicates a brass compression fitting for 1/4 inch OD tubes with 1/4 NPT threads, while SSLK-M30-18T denotes a stainless steel metric OMEGALOK® fitting for a 3.0 mm tube with BSPT thread.
Rated 5 out of 5 by from Long Lasting Quality Product Used in our Propeller Dyno , working great . Not a friendly environment , but these have lasted .
Date published: 2025-12-29
Rated 5 out of 5 by from A great product at a reasonable price! A very Reliable Product that lasts a long time, great buy!
Date published: 2025-10-03
Rated 5 out of 5 by from Good products, good service! People on the phone were friendly, knowledgeable, and very competent and capable. The products were as described. I would give it a five star rating and I will buy from them again.
Date published: 2025-06-27
Rated 5 out of 5 by from Great quality Great product. We orders these quite often and have not had any issues due to the great quality of this part.
Date published: 2024-12-09
Rated 5 out of 5 by from A+ Company and products This company has been very consistent with their customer service, availability, and pricing. I have never had an issue with them being late or having to move out parts I have asked for. This is a great company and I look forward to doing more business with them.
Date published: 2023-12-27
Rated 4 out of 5 by from Great quality product Paid for overnight shipping, however it took an extra day for these to leave Omega.
Date published: 2023-12-18
Rated 5 out of 5 by from Would buy again! amazing quality, fast delivery, we use them right out of the box.
Date published: 2023-11-27
Rated 5 out of 5 by from OMEGALOK Compression Fittings Arrived quickly, works exactly as intended. We are satisfied with the product.
Date published: 2023-08-07
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What pressure will these compression fittings hold with a sheet type thermocouple

Asked by: ThatGuy
Omega does not put a pressure rating on these fittings because there are many variables like tube wall thickness and temperature. You would need to send the exact part numbers to temp@omega.com to review but certainly a few hundred PSI can be expected.
Answered by: ApplicationEngineerANB
Date published: 2022-10-26

Is Item# SSLK-14-18 bored through the same as Item# SSLK-14-14?

Asked by: KOlsen
Yes the first 14 is for the size of the tube accepted in this cases 0.25". The second number is for the NPT thread on the fitting.
Answered by: ApplicationEngineerANB
Date published: 2023-12-01

What is the operational and burst pressure rating of the BRLK-18-14, 1/8 x 1/4 compression fitting, PCJOB02818, 1806, Zone L, Brass?

Asked by: Bryan01
No data available. It is dependent on the probe used in application.
Answered by: Application Engineer JB
Date published: 2022-01-24

what grade of brass do you use to manufacture MTA3-1/4-1/4-BR Model

Asked by: amot
This question will require addition effort so please send your request to temp@omega.com for follow up.
Answered by: ApplicationEngineerANB
Date published: 2022-10-03

Is the OmegaLok adapter Item# SSLK-14-14, 1/4" all the way through or is there a stop?

Asked by: SGotchy
Thank you for your inquiry. This compression fitting is designed to accept a 1/4" diameter probe with no stop and opening is all the way through for probe insertion into a process.
Answered by: Application Engineer JB
Date published: 2021-09-28

What is the thru hole diameter of the 1/8NPT to 6mm compression fitting? We are trying to use for a 5mm probe that has a 6mm collar for the fitting (need the 5mm diameter to go through the fitting). What is the rated pressure of the fitting?

Asked by: JE345
The SSLK-M60-18 has an opening to accept a 6mm diameter tube. Omega cannot make a recommendation for any other diameter and does not place a pressure rating either.
Answered by: ApplicationEngineerANB
Date published: 2022-09-20

Can this fitting be used to insert a 0.25 inch metal tube into a larger polycarbonate tube?

Asked by: james01
Thank you for your inquiry, Yes this fitting will except a 0.25 inch metal tube
Answered by: rkent
Date published: 2023-01-27
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