| MATERIAL | IRON MALLEABLE OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MEDIA FOR WHICH DESIGNED | STEAM 1ST RESPONSE |
| WATER-OIL-GAS 2ND RESPONSE |
| MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH 1ST RESPONSE |
| 300.0 POUNDS PER SQUARE INCH 2ND RESPONSE |
| CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS |
| CONNECTION STYLE | PLAIN (PIPE) ALL ENDS |
| THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| NOMINAL THREAD SIZE | 4.000 INCHES 1ST END |
| 2.000 INCHES 2ND END |
| NOMINAL OVERALL LENGTH | 4.380 INCHES |
| REDUCER TYPE | CONCENTRIC |
| SPECIFICATION/STANDARD DATA | 81348-WW-P-521 GOVERNMENT SPECIFICATION AND |
| 80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND |
| 8 TABLE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | WWP521 |