UNSPSC 31162411: Snap rings

UNSPSC 31162411 Snap rings, a Commodity code, encompasses precision engine and mechanical sealing components that state and local transit authorities source for vehicle maintenance and overhaul work. Recent solicitations show demand centered on piston ring assemblies—oil-pressure rings, compression rings, and multi-piece piston ring sets—used in bus fleet engine rebuilds and component replacements. The Dallas Area Rapid Transit Authority (DART) is the principal recent buyer under this code, having posted three related procurements in the first quarter of 2026 for engineered ring and piston assemblies. Vendors typically compete on FOB Destination pricing inclusive of freight, strict adherence to Net 30 payment terms, and reliable delivery performance; failure to meet delivery schedules can trigger rejection and default termination. All suppliers must provide commercial warranties certifying merchantable quality and specification compliance, register on the BONFIRE procurement platform to access bid tables, and submit invoices in triplicate to designated email accounts with complete itemization.

Geographic activity is concentrated in Texas, specifically Dallas County, driven by DART purchasing. The most recent representative solicitations include two related procurements posted February 26, 2026 with a March 20, 2026 response date: Ring, Oil High Pressure Piston 3-Piece Set (Solicitation 2098137) and Ring, Oil Low Pressure Piston 3-Piece Set (Solicitation 2098136). An earlier compression ring procurement (Solicitation 2097610) closed January 28, 2026. No set-aside designations, disadvantaged-enterprise restrictions, or award values are disclosed in the posted opportunities. Budget ranges and specific part quantities remain accessible only through BONFIRE registration and the in-browser bid tables.