| MATERIAL | IRON MALLEABLE OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A197 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM NATIONAL SPEC 1ST TREATMENT RESPONSE AND |
| QQ-Z-325,CLASS FED SPEC 2ND TREATMENT RESPONSE AND |
| ASTM A164,TYPE LS NATIONAL SPEC 3RD 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 |
| MAXIMUM OPERATING TEMP | 500.0 DEG FAHRENHEIT 1ST RESPONSE |
| 150.0 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 | 4.000 INCHES 1ST END |
| 2.500 INCHES 2ND END |
| NOMINAL OVERALL LENGTH | 4.380 INCHES |
| REDUCER TYPE | CONCENTRIC |
| SPECIFICATION/STANDARD DATA | 80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND |
| 81348-WW-P-521 GOVERNMENT SPECIFICATION |
| NONDEFINITIVE SPEC/STD DATA | 8 TABLE AND |
| 2 TYPE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | WWP521TYPE2 |