UNSPSC 31411706: Mechanical seals

Mechanical seals are devices that are used to provide a seal at the point of entry or exit of a rotating shaft. Simply a method of containing fluid within a vessel (typically pumps, mixers, etc.) where a rotating shaft passes through a stationary housing or occasionally, where the housing rotates around the shaft.

UNSPSC 31411706 Mechanical seals, a Commodity code, covers replacement and repair seals for industrial pumps and rotating equipment used by state and local water, wastewater, and public works departments. The code captures both OEM-branded seals and aftermarket equivalents sourced through authorized distributors, as well as associated lubricants, adhesives, and installation materials that accompany seal replacement work. State and local buyers—primarily water authorities, transportation departments, and public utilities operating centrifugal and positive-displacement pumps—solicit these items through single-source procurements when equipment is proprietary or through competitive RFQs when standardized seal specifications apply across multiple locations or maintenance cycles.

Recent activity shows limited but concrete procurement under the code. The City of Port Orange, Florida issued a Notice of Intent to Award a Single/Sole Source Procurement (SS2620CW, due September 16, 2026) for NOV Chemineer Moyno pump products and repair services with an estimated annual contract value of $500,000, targeting authorized dealers of NOV Moyno equipment in Florida, Alabama, Georgia, and Tennessee. The State of Maine Department of Transportation, procuring through the Department of Administrative and Financial Services Office of State Procurement Services, issued RFQ 17A260427-275 (due June 1, 2026) for a Master Agreement covering 76 line items of bridge joint seals, compression seals, and related materials for delivery to nine MDOT locations statewide; the initial contract runs through June 30, 2027, with four optional one-year extensions. Recent opportunities show geography concentrated in Florida and Maine; a single notice from Williamson County, Texas announced a departmental relocation and carries no procurement scope.