scope:

PURPOSE

This John C. Stennis Space Center (SSC) standard (SSTD) covers the instructions to be followed for content and form of technical specifications to be prepared for the procurement of materials or equipment for which no suitable specification exists. The document provides assistance in the preparation of procurement specifications and a uniform format for the specifications.

APPLICABILITY

Technical requirements for needed materials or equipment shall be prepared and presented to vendors by use of:

a. Desktop Requisition (DR)

A DR shall be made through the Maximo service request system when ordering a manufacturer's commercially available material or equipment from the warehouse. A procurement specification is not necessary for stock warehouse items.

b. Specification Control Drawing (SCD)

A procurement specification is not required when a SCD is used.

c. Procurement Specification

A procurement specification shall be used if any of the following conditions are met:

1. When ordering engineered equipment, which is defined as any item to be purchased according to special pre-determined design, including items that will be fabricated in shops.

2. When ordering manufacturer's stock items which are to be modified or which require a special or unusual test(s) be made before acceptance.

3. When ordering a "system" which is made of many different items combined into a unit, such as an instrument panel.

4. When ordering to meet strictly functional requirements. A functional specification states the technical requirements, the required operational and maintenance performance, and provides for the vendor to furnish detailed design. A functional specification is ideal when a non-existing product is to be procured, and the vendor is to furnish the detailed design in addition to the end item.