Definitions of Service, Service with Supply, Supply & Supply with Service contracts.
  1. Service” means a contract that directly engages the time and effort of a contractor whose primary purpose is to perform an identifiable task rather than to furnish an end item of supply. A service contract may be either a nonpersonal or personal contract. It can also cover services performed by either professional or nonprofessional personnel whether on an individual or organizational basis. Some of the areas in which service contracts are found include the following:

    1. Maintenance, overhaul, repair, servicing, rehabilitation, salvage, modernization, or modification of supplies, systems, or equipment. 
    2. Routine recurring maintenance of real property.
    3. Housekeeping and base services.
    4. Advisory and assistance services.
    5. Operation of Government-owned equipment, real property, and systems.
    6. Communications services.
    7. Architect-Engineering (see Subpart 36.6).
    8. Transportation and related services (see Part 47).
    9. Research and development (see Part 35).

  2. Supplies” means all property except land or interest in land. It includes (but is not limited to) public works, buildings, and facilities; ships, floating equipment, and vessels of every character, type, and description, together with parts and accessories; aircraft and aircraft parts, accessories, and equipment; machine tools; and the alteration or installation of any of the foregoing.