Introduction: MS-B specifications help procurement teams match seal dimensions to transport interfaces, plan carton quantities, and send a complete RFQ.
When a transport operation moves from occasional purchasing to regular replenishment, small specification differences become practical supply decisions. A seal that fits one container door may be unsuitable for another interface, while an unclear length or packaging quantity can create receiving delays and inaccurate inventory records. MS-B is a tinned steel metal band seal with a silver finish, fixed closing length, unique numbering, and `SEALED` marking. Its listed dimensions are 220 mm total length, 211 mm usable length, and 0. 3 mm × 8. 5 mm band size. The package quantity is 500 pieces per box, giving purchasing teams a clear starting point for sample approval and quantity planning.
How MS-B Dimensions and Tinned Steel Construction Affect Initial Product Fit
The 220 mm total length and 211 mm usable length serve different purchasing purposes. Total length describes the full seal before application. Usable length is the part available for passing around or through the sealing interface before the metal band is closed. For a procurement manager, the 211 mm figure is usually the more useful starting point when comparing the seal with a container door handle, trailer latch, truck door fitting, TIR-related interface, or rail carriage closure. The remaining difference between the two figures belongs to the seal structure and closing area, so it should not be added to the usable band length when estimating the opening available for installation. The 0. 3 mm × 8. 5 mm band size also needs to be compared with the actual sealing point. Thickness affects whether the band can pass through the available opening, while width affects the clearance and contact area inside that opening. Nominal dimensions alone is separate from compatibility because container and vehicle hardware vary by design, wear, alignment, and hole shape. A practical approval process starts when the sample arrives: measure the sealing interface, install the MS-B sample using the normal site procedure, check whether the band reaches the ball locking mechanism without forcing the hardware, and record the result for each transport-unit type. The tinned steel construction gives the product a metal band form with a silver appearance, while the ball locking mechanism creates a fixed closing length after the band is bent and inserted. The product is intended for transport and logistics sealing, including containers, trailers, trucks, TIR cables and lines, and railway carriages. Its `SEALED` marking and unique number support visual checks and seal-number records during loading, handover, transit, and receipt. For the approval record, it is useful to note the interface tested, the operating team involved, the installation result, the removal tool used, and the specific seal specification approved. This keeps the decision tied to an actual application rather than a catalog dimension alone.
Which Specifications Matter Most When Planning a Bulk Order
For quantity planning, usable length is the first specification that connects the product to daily operations. If the seal is used across several container or vehicle designs, the purchasing team should base the initial quantity on the interfaces that consume the most usable band length. One receiving team may approve MS-B for standard container doors, while another may need a separate sample review for trailer or TIR equipment. Recording the approved application beside the model number helps prevent a standard replenishment order from being distributed to an unapproved sealing point. Band dimensions are equally important when planning deployment. The 0. 3 mm thickness and 8. 5 mm width should appear in the internal item description, purchase order, sample approval record, and RFQ. This prevents substitutions that look similar but pass through the interface differently. It also gives warehouse and operations teams a shared reference when they identify the product at receipt. The fixed closing length, silver finish, `SEALED` marking, and unique numbering add useful identification details for the stock record, especially when several metal seals or steel cable seals are stored in the same facility. The 87 kg figure is presented as MS-B’s listed breaking-strength value. It belongs in the technical specification section of an RFQ, but it should be written exactly as supplied until the supplier confirms the test method, loading direction, assembly conditions, tolerances, and unit interpretation. In technical communication, mass and force are different physical quantities, so a purchasing document should ask whether the stated figure refers to a force value expressed in kilogram-force or another convention. The BIPM SI Brochure provides the appropriate discipline for separating mass, force, and SI units. This figure should remain a breaking-strength specification, rather than being converted into load capacity or used as a complete security rating. Packaging affects the order in a different way. MS-B is packed at 500 pieces per box, which lets the buyer convert the approved usage quantity into carton planning. For example, an operation forecasting 2,000 seals for a scheduled deployment can organize that requirement around four boxes before adding its own reserve policy. The carton count also affects warehouse space, receiving labor, labeling, and outbound distribution to regional sites. Packaging configuration beyond 500 pieces per box, including carton dimensions and shipping weight, belongs in the RFQ when freight planning matters. The 500-piece figure supports quantity planning, but it does not set MOQ, price, stock status, or lead time.
How to Turn Product Data Into a Complete RFQ Request
A useful RFQ turns the product description into decisions that purchasing, operations, quality, and logistics teams can all review. Start with the exact model, material, color, total length, usable length, band dimensions, listed breaking strength, fixed closing length, numbering, marking, and package quantity. Then describe where the seal will be used and how many transport units require sealing per day, week, or month. This gives the supplier enough application information to discuss fit and gives the buyer a clear basis for comparing quotations. For a standard MS-B order, include the target delivery location and whether the requirement is a one-time project, scheduled replenishment, or repeat-order program.
1. RFQ Details Should Connect the Sealing Interface With the Quantity Plan
The application section should identify the transport object and the physical sealing point. State whether the intended use is on containers, trailers, trucks, TIR lines, railway carriages, or several approved equipment types. Add interface measurements, photographs, or a drawing when the opening is difficult to describe. The quantity section should then separate initial deployment, monthly consumption, safety stock, and distribution by site. This prevents a single total number from hiding different fit requirements or causing one warehouse to receive more seals than it can use before the next replenishment cycle. The packaging request should state that the standard reference is 500 pieces per box and ask the supplier to show how the quoted quantity will be packed. If a shipment requires multiple locations, request carton allocation by destination or purchase-order line. The documentation request should cover material description, dimensional confirmation, numbering and marking details, packaging configuration, and the written basis for the 87 kg breaking-strength figure. The FTC guidance on advertising supports clear presentation of objective product parameters and their qualifying conditions, which is also a practical standard for RFQ comparison.
2. Written Commercial Terms Make Repeat Orders Easier to Control
Before final approval, request written details for MOQ, unit price, volume pricing, sample availability, current stock, production lead time, shipping method, and delivery terms. These are commercial conditions, not assumptions that can be calculated from the product dimensions or the 500-piece box quantity. Ask the supplier to identify any tolerances for length, band thickness, width, numbering, and packaging quantity, along with the inspection method used for the shipment. When quality or compliance review is part of the buying process, request the relevant test documentation, product declarations, and any standard-related documents that apply specifically to MS-B. For repeat orders, preserve the approved sample reference and the exact numbering and marking instruction with the purchase record. The unique numbered seal and `SEALED` marking can support site records, but the numbering rules, sequence control, and customer-specific options should be agreed in writing. BBSFS presents itself as a security seal manufacturer with OEM and ODM support, so a quotation request can also ask whether numbering, marking, or packaging adjustments are available for the intended project. The response should identify what is standard, what is configurable, and what requires a separate sample or commercial condition.
Conclusion
MS-B gives bulk purchasers a defined starting specification: tinned steel construction, 220 mm total length, 211 mm usable length, 0. 3 mm × 8. 5 mm band size, a page-listed 87 kg breaking-strength figure, unique numbering, `SEALED` marking, and 500 pieces per box. The best purchasing decision connects those numbers to a measured sealing interface, an approved operating procedure, and a realistic inventory plan. Include the application, quantity, packaging, documentation, and delivery requirements in the RFQ, then obtain written confirmation of test details, tolerances, MOQ, price, stock, lead time, and customization scope before placing the order. Use the [MS-B product details](https://cable-seals. com/products/metal-band-seal-with-ball) as the starting point for a specification and quotation request.
FAQ
Q：What are the dimensions of the MS-B metal band seal?
A：MS-B has a 220 mm total length and a 211 mm usable length. Its metal band measures 0. 3 mm × 8. 5 mm. The product is made from tinned steel and has a silver finish. Compare the usable length and band dimensions with the actual sealing interface before approving the model for a specific container, trailer, truck, TIR line, or railway carriage.
Q：What does the 87 kg breaking strength listed for MS-B mean?
A：The 87 kg figure is the breaking-strength value listed for MS-B. Use it as a product specification in the RFQ and ask the supplier to state the test method, loading direction, assembly conditions, tolerances, and whether the unit represents mass or a force convention such as kilogram-force. It should remain a breaking-strength figure rather than being converted into load capacity.
Q：How many MS-B metal band seals are packed in one box?
A：MS-B is packed at 500 pieces per box. This supports carton-level quantity planning for deployment, warehouse receipt, and site distribution.
Sources / References
Advertising FAQs: A Guide for Small Business
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