scope:

1. This specification covers nine basic subsurface rod type pumps in four commonly used bore sizes for use in 2% in. and 2% in. tubing. Sufficient dimensional requirements are provided to assure interchangeability of all component parts; however, details of design and material are not specified.

2. Nothing contained in this specification is to be construed as granting any right, by implication or otherwise, for manufacture, sale, or use in connection with any method, apparatus, or product covered by letters patent, nor as insuring anyone against liability for infringement of letters patent. This specification is for the convenience of purchasers and manufacturers in ordering and producing subsurface pumps. It is not intended to inhibit purchasers and producers from purchasing and producing subsurface pumps meeting specifications other than those contained herein, nor is it intended in any way to inhibit purchasers from purchasing subsurface pumps from companies not authorized to use the API monogram.