UNSPSC 31411804: Rubber diaphragm seal

A type seal produced by molding or extruding rubber to the desired configuration

UNSPSC 31411804 Rubber diaphragm seal is a Commodity code with little relevant recent activity aligned to its scope. The single substantive solicitation posted under this code in the recent-opportunities block — Maine Department of Transportation's RFQ 17A 260427-275 for bridge joint seals and related materials, posted May 18, 2026, with a June 1, 2026 response deadline — names compression seals, silicone coated foam seals, and gland seals as the primary products being procured, along with supporting materials such as lubricant adhesive, sealant, primer, backer rod, and transition components. The remaining opportunities in the block are mislabeled: a Williamson County Purchasing Department relocation notice carries no procurement scope, a Sourcewell law enforcement equipment RFP covers tactical and protective gear unrelated to seals, a Brevard County fleet inventory management solicitation addresses parts-room operations and inventory logistics, a City of Atlanta heavy-duty trailer procurement encompasses vehicle equipment and repair services, and a Sarasota County Schools automotive parts supply agreement covers OEM parts across 19 manufacturers — none of which align with rubber diaphragm seal products. The code shows minimal market activity focused on state-level transportation infrastructure buyers.

The Maine MDOT RFQ represents the only clear opportunity under this code. The solicitation establishes a Master Agreement running from June 15, 2026, through June 30, 2027, with four optional one-year extension periods, covering 76 line items across compression seals (23 sizes from 1/2" to 6" width), silicone coated foam seals (23 sizes), non-brand-specific gland seals (23 sizes), and supporting materials, with delivery required to nine MaineDOT locations across five regions throughout Maine. Quotations submitted via the State of Maine's Advantage Vendor Self Service portal are evaluated at 100 linear feet per seal line item and 1 unit each for supporting materials, with FOB Destination pricing including freight and delivery. The State anticipates a single award to the lowest qualified bidder and permits Maine municipalities, political subdivisions, and school districts to access the resulting contract at negotiated state pricing with vendor consent. The RFQ includes no set-aside restrictions and does not identify incumbent vendors or specific annual usage guarantees. Geographic concentration and issuing-body mix cannot be characterized from the available data; only Maine activity surfaces in the recent-opportunities block.