| BODY INSIDE DIAMETER | 2.625 INCHES MINIMUM AND 2.630 INCHES MAXIMUM |
| FLANGE DIAMETER | 3.875 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.688 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B164 ALLOY R-405 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| MATERIAL | NICKEL ALLOY B OVERALL |
| NOMINAL THREAD SIZE | 3.459 INCHES SINGLE THREADED PORTION |
| SPECIAL FEATURES | 4 SLOTS 0.750 IN. WIDE EQUALLY SPACED |
| SEATING SURFACE SHAPE | FLAT |
| STYLE DESIGNATOR | THREADED FLANGED |
| THREAD LENGTH | 0.656 INCHES NOMINAL SINGLE THREADED PORTION |
| THREAD QUANTITY PER INCH | 11-1/2 SINGLE THREADED PORTION |
| THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |
| UNDER FLANGE HEIGHT | 0.812 INCHES NOMINAL |