UNSPSC 31411700: Mechanical seals

Seals designed to prevent leakage between a rotating shaft and its housing.

UNSPSC 31411700 Mechanical seals, a Class code, encompasses bridge joint seals, compression seals, silicone-coated foam seals, and related transition materials that state and local governments source to maintain transportation and infrastructure assets. The recent opportunity record shows minimal activity directly tied to mechanical seals; the only relevant solicitation is the Maine Department of Transportation's Master Agreement RFQ for bridge joint seals and related materials posted in May 2026, which specified 76 line items including compression seals in 23 sizes (1/2" to 6"), silicone coated/pre-compressed foam seals in 23 sizes, and non-brand-specific gland seals in 23 sizes, alongside supporting materials such as lubricant adhesive, sealant, primer, backer rod, and splice adhesive. The remaining opportunities in the dataset—a Williamson County Purchasing Department relocation notice, a Sourcewell law enforcement equipment RFP, a Brevard County fleet inventory management solicitation, an Atlanta heavy-duty trailers IFB, and a Sarasota County Schools automotive parts agreement—fall outside the mechanical seals scope and do not represent activity under this code.

The Maine Department of Transportation issued the MDOT RFQ (17A 260427-275) on behalf of the State of Maine Department of Administrative and Financial Services, Office of State Procurement Services, with a June 1, 2026 response deadline and delivery required to nine MaineDOT locations across five regions throughout Maine. The initial contract period runs June 15, 2026 through June 30, 2027 with four optional one-year extension periods available through June 30, 2031, with all pricing required on a FOB Destination basis and quoted prices firm for a minimum of one year. This code shows limited recent state and local procurement activity; Maine represents the only identified jurisdiction with a current solicitation under mechanical seals, and the absence of additional opportunities in the dataset suggests this code warrants a watch-and-wait posture for most potential vendors unless they already serve transportation maintenance networks in the region.