| MATERIAL | IRON OR |
| IRON ALLOY OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MEDIA FOR WHICH DESIGNED | STEAM 1ST RESPONSE |
| WATER-OIL-GAS 2ND RESPONSE |
| MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 500.0 DEG FAHRENHEIT 1ST RESPONSE |
| 148.0 DEG FAHRENHEIT 2ND RESPONSE |
| CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS |
| CONNECTION STYLE | PLAIN (PIPE) ALL ENDS |
| THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| NOMINAL THREAD SIZE | 3.000 INCHES 1ST END |
| 3.000 INCHES 2ND END |
| 0.750 INCHES 3RD END |
| LEG LENGTH | 1.953 INCHES NOMINAL 1ST END |
| 1.953 INCHES NOMINAL 2ND END |
| 2.469 INCHES MINIMUM AND |
| 3.125 INCHES MAXIMUM 3RD END |
| SPECIAL FEATURES | ALL THREAD DIRECTIONS R-H |
| SPECIFICATION/STANDARD DATA | 81348-WW-P-521 GOVERNMENT SPECIFICATION |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | WWP521TYPE1 |