PSC 5331 - O-RING
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Classification & Hierarchy for PSC 5331
The classification hierarchy shows how this PSC code fits within the broader federal procurement structure.
- Level 1 Spend Category:
- 5 Industrial Products & Services
- Level 2 Spend Category:
- 5.3 Hardware & Tools
- Parent PSC Code:
- 53 HARDWARE AND ABRASIVES
- Active Since:
- October 1, 1998
- Last Updated:
- April 30, 2024
Overview for PSC 5331
The Product and Service Code (PSC) 5331 pertains specifically to O-Rings, which are mechanical gaskets in the shape of a torus used to seal connections and prevent the leakage of liquids or gases in various equipment and assemblies. This PSC covers a wide range of O-Ring sizes, materials, and specifications that are utilized across numerous federal applications, including aerospace, defense, automotive, and industrial machinery. O-Rings are critical components in ensuring the integrity and performance of hydraulic systems, fuel lines, pneumatic assemblies, and other sealed environments. Government agencies use this PSC in contracting to procure standardized sealing solutions that meet stringent quality and durability requirements, ensuring operational reliability and safety in mission-critical systems. It should be noted that PSC 5331 excludes packing and gasket materials, which are covered under FSC 5330.
Excludes for PSC 5331
This PSC code does NOT cover the following:
Packing and Gasket Material (FSC 5330).
Typical Buyers & Agencies for PSC 5331
Federal agencies such as the Department of Defense (DoD), the Department of Energy (DOE), NASA, and the General Services Administration (GSA) are frequent buyers under PSC 5331. These agencies require O-Rings for maintenance, repair, and overhaul of critical equipment used in aircraft, vehicles, weapons systems, and energy infrastructure. The DoD is a particularly prominent purchaser due to the extensive use of O-Rings in military hardware. Additionally, agencies involved in scientific research and space exploration procure O-Rings to ensure airtight and leak-proof assemblies in highly sensitive equipment.
Common Contract Types for PSC 5331
Contracts awarded under PSC 5331 commonly include firm-fixed-price and indefinite-delivery/indefinite-quantity (IDIQ) contracts, especially for ongoing supply and maintenance programs. Procurement methods typically involve competitive bidding, although sole-source contracts may be used when specific material standards or proprietary specifications are required. Small business set-asides are frequent for these commodities to promote supplier diversity. Typical use cases include long-term supply contracts for stock replenishment, emergency repair parts procurement, and specialized custom O-Ring fabrication to meet unique government specifications.
Plain-Language Breakdown for PSC 5331
- Covers standardized O-Rings used as sealing components in various federal equipment.
- Excludes packing and gasket materials classified under FSC 5330.
- Commonly purchased by DoD, NASA, DOE, and GSA for maintenance and operational use.
- Contracts typically include firm-fixed-price and IDIQ for supply and repair support.
- Associated with NAICS codes related to rubber product manufacturing and machining.
- Essential for leak prevention in aerospace, defense, and industrial applications.
Related Categories for PSC 5331
Other categories at the same level as 5331
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