
Commercial Ordering FAQ
How do I verify that Dds IN34.9249.216.35TB – Shaft Seal, TB, 1.375 in ID, Nitrile Rubber is the correct replacement part for my equipment?
Check the OEM part number (IN34.9249.216.35TB) against your equipment nameplate or the manufacturer's repair parts list before ordering. If you are not sure, call the National Boiler Supply order desk at 850-565-3492 and we can cross-reference your equipment model and serial numbers before the order ships.
What are the shipping and freight options for Dds orders?
Standard parcel orders ship quickly from commercial distribution centers. Shipping is a $35 flat rate on orders under $999, and qualifying orders of $999 or more ship free by ground. Heavy equipment that has to move by LTL freight is quoted after the order is placed and confirmed with you before dispatch.
Can contractors or facility managers request a formal quote or use a Purchase Order (PO)?
Yes. National Boiler Supply works with commercial contractors, mechanical engineers, municipalities, and facility teams. Call 850-565-3492 for a formal quote, bulk pricing, or PO and tax-exempt order processing.
What if this Dds part is marked Call to Order or needed for an emergency repair?
Call our order desk at 850-565-3492. We can confirm factory lead times right away and arrange expedited air or hot-shot delivery when a repair cannot wait.
National Boiler Supply supplies the Dds IN34.9249.216.35TB Shaft Seal to contractors, facility teams, and purchasing departments. Get fast dispatch, contractor-ready quotes, and order desk support at 850-565-3492.
Product Details
Rotary Shaft Seal, Design Code TB, Inside Diameter 1.375 in, Outside Diameter 2 in, Overall Width 0.25 in, Contact Type Contact Seal, Lip Material Nitrile Rubber, Maximum Pressure 7 psi, Number of Lips 2, System of Measurement Inch, Case Coating Uncoated.
Technical Specifications
| Brand | Dds |
|---|---|
| Manufacturer Part Number | IN34.9249.216.35TB |
OEM Part Verification: Confirm Dds part number IN34.9249.216.35TB against your equipment nameplate or parts list before ordering. Our order desk can cross-check it for you.
Order Desk Support: Call 850-565-3492 for formal quotes, lead times, and volume pricing.
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.