| MATERIAL | IRON OR |
| STEEL NUT |
| COPPER ALLOY SEAT |
| STEEL TAILPIECE |
| IRON OR |
| STEEL THREAD PIECE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR |
| ASTM A47 ASSN STD 1ST MATERIAL RESPONSE OR |
| ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR |
| ASTM A675 ASSN STD 2ND MATERIAL RESPONSE NUT |
| QQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR |
| ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR |
| ASTM A675 ASSN STD 2ND MATERIAL RESPONSE TAILPIECE |
| ANSI G49.1 ASSN STD 1ST MATERIAL RESPONSE OR |
| ASTM A675 ASSN STD 2ND MATERIAL RESPONSE THREAD PIECE |
| SURFACE TREATMENT | ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OR |
| ASTM A153,CLASS A 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 |
| MAXIMUM OPERATING TEMP | 450.0 DEG FAHRENHEIT SINGLE RESPONSE |
| STYLE DESIGNATOR | THREADED |
| 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 ALL ENDS |
| NOMINAL OVERALL LENGTH | 3.500 INCHES |
| SEAT TYPE | GROUND-JOINT |
| SPECIFICATION/STANDARD DATA | 81348-WW-U-531 GOVERNMENT SPECIFICATION |
| NONDEFINITIVE SPEC/STD DATA | 1 CLASS AND |
| B TYPE |