History: Below is a listing of the Revisions and Changes made to this UFGS.
| KEY | PREPARING ACTIVITY (PA) | A Army | N Navy | F Air Force | S NASA [ARCHIVED] |
|---|---|---|---|---|---|
| ACTION | N New | R Revision | C Change | D Deletion |
| Release | PA | Date | Action | Change # | Nature of Change or Revision |
|---|---|---|---|---|---|
| Feb-2021 | A | Aug-2018 | C | 1 | Updated valve body material. Corrected terminology in paragraph 1.5 in response to CCR 9173. Clarified paragraph Bodies, Bonnets, and Covers in response to CCR 9174. Updated sentence in paragraph 2.2.1.6 in response to CCR 3432. |
| Aug-2018 | A | Aug-2018 | R | Complete review and update. | |
| Feb-2010 | A | Feb-2010 | N | New section |
