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) does not align with recent state and local procurement activity logged under this code. The one substantive opportunity in the recent record—Maine Department of Transportation's RFQ 17A26042700000000000275 posted May 18, 2026—solicits bridge joint seals and related materials (compression seals, silicone coated foam seals, gland seals, lubricants, sealants, primers, backer rod, and splice adhesive), which fall outside the narrow scope of bellows mechanical seals. The remaining records are unrelated: Williamson County's posting is an administrative relocation notice; Sourcewell's law enforcement equipment RFP and Brevard County's fleet inventory management ITB address wholly different commodity families; the City of Atlanta's heavy-duty trailers IFB and Sarasota County Schools' automotive repair parts bid likewise do not involve mechanical seals of any type. The code shows little relevant recent activity across state and local procurement channels.

No recent opportunities targeting bellows mechanical seals or their direct equivalents are present in the data. The Maine DOT bridge seals procurement—the closest match by product category—requires compression, silicone coated, and gland seals measured in linear feet for bridge joint applications, not rotating-equipment bellows seals. Activity is too sparse and misaligned to support a pursue decision at this time.