NIGP 55979: Track Hardware (Plates, Joint Bars, Spikes, Clips, Bolts, Nuts, etc.) (see Class 570 for Rails)

NIGP 55979 Track Hardware (Plates, Joint Bars, Spikes, Clips, Bolts, Nuts, Etc.), an Item code, covers replacement and maintenance components for rail transit vehicles and streetcar systems—fasteners, spacers, wear rings, shock absorbers, hose assemblies, and pole pieces that keep rolling stock operational between major overhauls. Recent solicitations show state and local buyers purchasing individual replacement parts through standing purchase orders and quotes, with delivery windows measured in weeks and Net 30 payment terms standard across the board. Transit authorities dominate the issuing-body mix: the Dallas Area Rapid Transit Authority (DART) has posted nine separate component solicitations since May 2026, while the Charlotte Area Transit System (CATS) and the City of Detroit Office of Contracting and Procurement also appear as active buyers. DART's high volume of narrow, part-specific quotes reflects standing maintenance protocols for light rail and bus rapid-transit fleets; CATS's August 2026 RFP for Streetcar Truck Overhauls signals major capital-equipment servicing rather than routine spares. The City of Detroit's traffic-engineering division purchases anchor bolts, post base plates, and drive caps for sign-shop operations, suggesting the code includes infrastructure hardware beyond rolling stock.

Texas dominates current activity by posting volume, with DART alone accounting for at least eight of the nine recent opportunities posted between April and September 2026. Michigan and North Carolina represent secondary markets. Representative opportunities include DART's purchase order 2101003 for a rod end, left-hand leveling valve (RFQ due October 2, 2026), the City of Detroit's RFQ 547916 for anchor bolts, post base plates, and drive caps with a three-year term requiring Detroit-based-business certification and Executive Order #2016-2 workforce compliance (rebid posted September 9, 2026; original due August 12, 2026), and CATS's RFP 26920272117 for CATS IV Streetcar Truck overhauls to Siemens OEM specifications at 15-year/270,000-mile intervals (proposals due October 20, 2026). DART standardizes FOB Destination pricing with freight included, Net 30 invoicing in triplicate to APInvoices@dart.org, and strict delivery-schedule enforcement as grounds for default termination. The Detroit sign-shop contract shows local-preference and resident-workforce set-asides applicable to municipal purchasing in that jurisdiction.