UNSPSC 31411702: Bellows mechanical seal

A non pusher design that does not move along the shaft or sleeve to maintain seal face contact. The bellows itself provides the necessary spring loading for seal face contact.

UNSPSC 31411702 Bellows mechanical seal (Commodity) covers replacement seals and repair components for pump and rotating-equipment maintenance, typically purchased as individual units or in batches to service existing equipment fleets. State and local governments buy these seals through single-source procurements tied to original-equipment-manufacturer authorization, competitive RFQs for master-agreement supply contracts, and cooperative purchasing vehicles that aggregate demand across multiple jurisdictions. Issuing bodies include municipalities, state transportation departments, and cooperative purchasing organizations acting on behalf of participating entities across multiple states.

The code shows limited recent activity in state and local procurement databases. The City of Port Orange, Florida issued a Notice of Intent to Award a single-source procurement (SS2620CW, due September 16, 2026) for NOV Chemineer Moyno pump products and repair services estimated at $500,000 annually through Carl Eric Johnson, Inc., an authorized dealer serving Florida, Alabama, Georgia, and Tennessee. The State of Maine Department of Administrative and Financial Services issued an RFQ (17A26042700000000000275, due June 1, 2026) on behalf of the Maine Department of Transportation for bridge joint seals and related materials across 76 line items, with delivery to nine MaineDOT locations throughout Maine and a contract term running through June 30, 2027 with optional extensions through 2031. Activity appears concentrated in the Southeast and Northeast, with opportunistic single-source awards tied to authorized-dealer relationships and episodic RFQs for fleet maintenance supply agreements.