You may use the Website for personal, non-commercial purposes only, in compliance with applicable laws.
You may not use the Website unlawfully, attempt unauthorized access, or reproduce Content without permission.
2. Website Content
No Technical Analysis: Content (text, images, etc.) is for general information only, not technical analysis or professional advice. Consult professionals before acting on Content.
No Guarantee: We do not guarantee Content accuracy or completeness. You rely on Content at your own risk. We may update or remove Content without notice.
3. Limitation of Liability
No Responsibility: To the fullest extent permitted by law, Northern is not liable for any damages (direct, indirect, or otherwise) from your use of the Website, including errors in Content or technical issues.
As-Is: The Website is provided “as is” without warranties, express or implied.
4. Text Messaging Data
We collect your mobile phone number when you opt in to receive SMS text
messages regarding your order and equipment status.
No sharing for marketing: We do not share, sell, or rent
your mobile information to any third party or affiliate for marketing or
promotional purposes. Information sharing to subcontractors in support
services, such as customer service, is permitted where necessary to
operate our SMS program.
Purpose of collection: Your phone number is used solely
to send you order and equipment status updates that you have opted in
to receive.
Retention: We retain your phone number and
opt-in/opt-out status for as long as necessary to comply with legal and
regulatory requirements.
Your choices: You may opt out of text messages at any
time by replying STOP. Opting out of SMS messages does
not affect your other communications with us (e.g., email).
5. Third-Party Links
The Website may link to third-party sites we do not control. We are not responsible for their content or practices. Use them at your own risk.
6. Intellectual Property
Content is owned by Northern or its licensors and protected by law. You may view Content for personal use but not reproduce or modify it without permission.
7. Termination
We may suspend or terminate your access to the Website at any time for violating these Terms.
8. Changes to Terms
We may update these Terms by posting revisions on the Website. Continued use after changes means you accept them.
9. Governing Law
These Terms are governed by North Dakota law. Disputes will be resolved in North Dakota state or federal courts.
NOS Assistant
Northern Oilfield Services
API 6A Flange Reference Tool
Flange Size (Nominal)
Pressure Rating
Select a flange size and pressure rating to view ring, bolt, and pump PSI specs.
NOS Cheat Sheet V1.0 · API 6A / ISO 10423 · NOS supplies ring gaskets & stud bolts · 701-941-0423