PSC Code 3120 covers Bearings, Plain, Unmounted, which are mechanical components designed to support and position moving or rotating parts without rolling elements. These bearings are typically one-piece units such as sleeve bearings, split bearings, washer type bearings, and jewel bearings. They are essential for reducing friction and wear in machinery and equipment by providing a smooth surface for motion. In federal government contracting, this PSC is used to procure unmounted plain bearings for a wide range of applications including aerospace, defense, transportation, and industrial machinery. Agencies rely on these components for maintenance, repair, and manufacturing of critical systems where precision and durability are required. This PSC excludes antifriction bearings and mounted bearings, which are classified under other codes.

Includes for PSC 3120

This PSC code covers the following products and services:

Sleeve Bearings; Split Bearings; Washer Type Bearings; Jewel Bearings.

Excludes for PSC 3120

This PSC code does NOT cover the following:

Antifriction Bearings (FSC 3110); Mounted Bearings (FSC 3130).

Additional Notes for PSC 3120

Important notes and guidance for using this PSC code:

Bearings in this class are generally one piece that retain and position moving and/or rotating parts. They may have lubrication grooves/fitting/facilities or include pre-lubrication.

Typical Buyers & Agencies for PSC 3120

Typical buyers of PSC 3120 include defense agencies such as the Department of Defense (DoD), the Department of Transportation (DOT), and other federal entities involved in equipment maintenance and manufacturing. These agencies require unmounted plain bearings for use in vehicles, aircraft, weapon systems, and industrial machinery where reliable and precise component support is critical. Additionally, agencies responsible for infrastructure and transportation may procure these bearings for maintenance of rail systems, heavy equipment, and other mechanical assets. The PSC facilitates streamlined acquisition of these essential components to ensure operational readiness and equipment longevity.

Common Contract Types for PSC 3120

Contracts under PSC 3120 commonly include firm-fixed-price and indefinite delivery, indefinite quantity (IDIQ) contracts to provide flexibility in procurement volumes. Simplified acquisitions and competitive sealed bidding are typical procurement methods, depending on the urgency and complexity of the requirement. Use cases often involve spare parts supply for maintenance programs, original equipment manufacturing (OEM) contracts for new systems, and repair contracts where unmounted plain bearings are required. Contracts may range from small-value orders for repair parts to larger supply agreements supporting long-term sustainment efforts.

Plain-Language Breakdown for PSC 3120

Covers unmounted plain bearings such as sleeve, split, washer type, and jewel bearings.
Used primarily by defense, transportation, and infrastructure agencies for maintenance and manufacturing.
Excludes antifriction bearings and mounted bearings classified under other PSC codes.
Contracts commonly include firm-fixed-price and IDIQ types with various procurement methods.
Often aligned with NAICS codes related to bearing manufacturing and aerospace or military equipment production.
Supports applications requiring precise positioning and friction reduction in mechanical systems.

Related Categories for PSC 3120

Other categories at the same level as 3120

3110 BEARINGS, ANTIFRICTION, UNMOUNTED

Bearings, Antifriction, Unmounted

3130 BEARINGS, MOUNTED

Bearings, Mounted

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