UNSPSC 24111826: Sight glasses

A sight glass, also called a sight window or view port, provides a means of seeing inside a process vessel or tank. Operators use sight glass to visually verify stages of a process, inspect process media, and to observe liquid levels, designed for particular levels of pressure, temperature, corrosion resistance, thermal stress and impact. component.

UNSPSC 24111826 Sight glasses (Commodity) covers prescription eyeglasses, frames, lenses, and fitting services that state and local agencies procure for employees, incarcerated persons, and facility residents. Recent solicitations show state health and human services agencies, higher education institutions, county governments, and cooperative purchasing vehicles acquiring eyewear through blanket purchase orders, indefinite-delivery contracts, and formal RFPs. The work includes supply of frames (plastic and flexible), single-vision and bifocal lenses, polycarbonate and progressive options, tinted and blue light blocking lenses, adjustable hardware components, slab-off services, and fitting labor. Vendors must typically meet delivery windows of 10–15 business days, maintain local or regional presence when required, and offer firm fixed pricing across defined line-item categories. Contracts often include options for extension and allowances for price adjustments based on cost-of-living indices.

Recent activity concentrates in Texas, where the Texas Health and Human Services Commission sought eyeglasses and fitting services for the Mexia State Supported Living Center under IFB HHS0017589 (due July 15, 2026) with historical spending of $48,370.65 annually, and Texas Tech University Health Sciences Center requested optical supplies including frames and lenses for 19 Department of Criminal Justice facilities under IFB 739-SL3809803 (due July 17, 2026). The County of San Mateo issued an Informal RFP for a comprehensive prescription safety glasses program with local business preferences under its ordinance (due January 2, 2026, contract under $200,000). Sourcewell, a Minnesota cooperative purchasing vehicle, issued RFP #061626 for law enforcement equipment with multi-state and multi-entity reach (due June 16, 2026), though the specific eyewear component of that procurement is unclear from available documentation. Issuing bodies include state health and human services departments, university health systems, county governments, and cooperative purchasing intermediaries serving thousands of public entities across the United States.