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PSC 4120: Air Conditioning Equipment — Active Federal Contracts & NAICS Crosswalk (460+ Bids Open)

Search 460+ Bids open SAM.gov solicitations for Federal PSC 4120 (Air Conditioning Equipment). Annual federal spend: $1.1 Billion. Crosswalked to NAICS 23822...

PSC 4120: Air Conditioning Equipment — Active Federal SAM.gov Contracts & NAICS Crosswalk

Federal procurement intelligence, spending breakdown, NAICS/NIGP crosswalk, and contract capture guide for PSC 4120 (Air Conditioning Equipment).

Product and Service Code (PSC) 4120 — Air Conditioning Equipment — is an official federal procurement classification within Federal Supply Class 41 — Refrigeration, Air Conditioning & Air Circulating managed by the General Services Administration (GSA) under the Federal Procurement Data System (FPDS) Product and Service Codes Manual. Across federal agencies, contracting officers obligate approximately $1.1 Billion annually under PSC 4120, with 460+ Bids active solicitations, pre-solicitation notices, and task order RFQs circulating on SAM.gov and agency e-Buy portals. While a 6-digit NAICS code defines a contractor's overall industry and Small Business Administration (SBA) size standard, PSC 4120 specifies the exact product (hvac) deliverable being purchased on the contract line item (CLIN). In federal solicitation architecture, PSC 4120 is most frequently paired with Primary NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors), which carries an SBA small business size standard of 1,250 Employees. Major buying commands—led by Department of Defense (DLA Troop Support, Navy, Air Force) (62% of spend), General Services Administration (18%), and Department of Veterans Affairs (14%)—use PSC 4120 to categorize statements of work encompassing Commercial Rooftop Units (RTUs), Centrifugal/Air-Cooled Chillers & Split Systems; Tactical Environmental Control Units (ECUs) for Military Shelters, Tents & Mobile Radars; and Shipboard Marine Chilled-Water Air Handlers & Precision Data Center CRAC Units. Understanding how contracting officers cross-walk PSC 4120 with NAICS 238220 is critical because many agencies filter dynamic small business searches, GSA e-Buy distributions, and historical FPDS incumbent spend analyses by PSC rather than NAICS alone. Procurement teams issuing awards under PSC 4120 utilize a mix of open-market SAM.gov solicitations and pre-competed contract vehicles such as GSA MAS 333415 / DLA. Depending on the acquisition threshold and market research results from Sources Sought notices, contracting officers frequently restrict PSC 4120 competitions to certified small businesses—including 8(a) Business Development participants, Service-Disabled Veteran-Owned Small Businesses (SDVOSB), Women-Owned Small Businesses (WOSB), and HUBZone firms. Offerors responding to PSC 4120 RFPs must demonstrate strict compliance with applicable FAR and DFARS clauses, deliverable quality standards, and supply-chain or labor regulations. For contractors expanding across both federal and state/local (SLED) markets, PSC 4120 maps directly to NIGP Commodity/Service Code 031-00 (Air Conditioning, Heating, and Ventilating Equipment, Parts, and Accessories) used by state procurement portals, municipal purchasing departments, public universities, and K-12 school districts. InTandem's automated government contracting platform continuously monitors live SAM.gov notices tagged with PSC 4120 alongside matching state and local NIGP 031-00 bids, enabling capture teams to uncover hidden opportunities and generate compliant proposals faster.

What Federal Agencies Buy Under PSC 4120

  • Commercial Rooftop Units (RTUs), Centrifugal/Air-Cooled Chillers & Split Systems
  • Tactical Environmental Control Units (ECUs) for Military Shelters, Tents & Mobile Radars
  • Shipboard Marine Chilled-Water Air Handlers & Precision Data Center CRAC Units
  • HEPA Negative-Pressure Portable Isolation Units, Heat Pumps & VRF Systems
  • FDA 510(k) / PMA Regulatory Clearance, DSCSA Lot Traceability & Cold-Chain Logistics
  • Trade Agreements Act (TAA) & Berry Amendment / Buy American Act Domestic Compliance
  • DLA Troop Support / VA National Acquisition Center (NAC) Electronic EDI Ordering
  • Shelf-Life Management, Lot Expiration Rotation & ISO 13485 / cGMP Quality Assurance

Top Federal Buying Agencies for PSC 4120

  • Department of Defense (DLA Troop Support, Navy, Air Force): $680 Million (62% of PSC Spend of obligations)
  • General Services Administration: $200 Million (18% of PSC Spend of obligations)
  • Department of Veterans Affairs: $155 Million (14% of PSC Spend of obligations)
  • General Services Administration & Civilian Agencies: $185 Million (11% of PSC Spend of obligations)

Common Federal Contract Vehicles & GWACs

  • GSA MAS 333415 / DLA (GSA Multiple Award Schedule / Best-in-Class Vehicle): Primary pre-competed federal contract vehicle used by contracting officers to issue RFQs and task orders under PSC 4120.
  • SAM.gov Open Market Solicitations (PSC 4120) (FAR Part 12 / 13 / 15 Open Market): Standalone Invitations for Bid (IFBs), Requests for Proposals (RFPs), and Simplified Acquisitions published directly under PSC 4120.
  • Agency-Specific IDIQs, MATOCs & GWACs (Indefinite Delivery / Indefinite Quantity): Multi-year agency task order vehicles at Department of Defense (DLA Troop Support, Navy, Air Force) and General Services Administration where PSC 4120 is the designated product/service identifier.

PSC 4120 Frequently Asked Questions

What does Federal PSC Code 4120 cover?

PSC 4120 (Air Conditioning Equipment) is an official Federal Procurement Data System (FPDS) Product and Service Code under Federal Supply Class 41 — Refrigeration, Air Conditioning & Air Circulating. Federal agencies use PSC 4120 to classify procurements for Commercial Rooftop Units (RTUs), Centrifugal/Air-Cooled Chillers & Split Systems, Tactical Environmental Control Units (ECUs) for Military Shelters, Tents & Mobile Radars, and Shipboard Marine Chilled-Water Air Handlers & Precision Data Center CRAC Units.

What is the difference between PSC 4120 and NAICS 238220?

NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors) classifies the contractor's primary industry and establishes the SBA small business size standard (1,250 Employees). PSC 4120 (Air Conditioning Equipment) identifies the specific product (hvac) being purchased on the solicitation or contract line item (CLIN).

How much does the federal government spend on PSC 4120 annually?

Federal agencies obligate approximately $1.1 Billion per year under PSC 4120, led by Department of Defense (DLA Troop Support, Navy, Air Force) ($680 Million), General Services Administration ($200 Million), and Department of Veterans Affairs ($155 Million), with roughly 460+ Bids active opportunities annually.

Which GSA Schedule or contract vehicle covers PSC 4120?

Procurements under PSC 4120 are frequently routed through GSA MAS 333415 / DLA, alongside agency-specific IDIQ contracts and open-market solicitations published directly on SAM.gov.

What is the State & Local (SLED) NIGP code equivalent for PSC 4120?

When bidding on state, county, municipal, or school district solicitations, the primary NIGP cross-reference for federal PSC 4120 is NIGP 031-00 (Air Conditioning, Heating, and Ventilating Equipment, Parts, and Accessories).

Related Federal PSC Codes

Browse All 165 Federal PSC Codes | NAICS 238220 Guide | NIGP 031-00 Guide | SBA Set-Asides