NIGP 32058: Rings, Retaining

NIGP 32058 Rings, Retaining is an Item code under which state and local governments procure piston rings and related retaining ring assemblies for transit authority vehicle maintenance and repair operations. The Dallas Area Rapid Transit Authority (DART) is the active buyer in the recent opportunity set, soliciting three separate piston ring assemblies — high-pressure oil rings, low-pressure oil rings, and compression rings — each supplied in three-piece sets for bus fleet powertrain maintenance. DART posts these solicitations as competitive purchase orders through the BONFIRE platform, requiring FOB Destination shipping with freight included in bid pricing, Net 30 payment terms, and strict adherence to specified delivery schedules. All vendors must certify compliance with equal opportunity employment provisions, non-affiliation with foreign terrorist organizations, and Israel non-boycott status; no set-aside designations or DBE restrictions appear in the posted materials.

DART's recent activity is concentrated in Texas, specifically Dallas County, with three opportunities posted between January 21 and February 26, 2026. Solicitation 2097610 for a Ring, Compression, High Pressure Piston closed on January 28, 2026. Solicitations 2098137 (Ring, Oil High Pressure Piston, 3-piece set) and 2098136 (Ring, Oil Low Pressure Piston, 3-piece set) both posted on February 26, 2026, with a March 20, 2026 response deadline. Award values and specific quantities are not disclosed in posted materials and are accessible only through the BONFIRE BidTable upon vendor registration. Invoices must be submitted in triplicate to APInvoices@dart.org and include complete itemization; failure to meet delivery timelines constitutes grounds for default termination.