| Item Name | Heater Water Gas |
| Federal Supply Group (FSG) | Plumbing Heating and Sanitation Equipment |
| Federal Supply Class (FSC) | 4520 Space And Water Heating Equipment |
| National Item Identification Number (NIIN) | 00-143-9548 (001439548) |
| NCB Code | USA (00) |
| Manufacturer | Federal Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| AMHR | Heating Capacity Per Hour | 34.000 GALLONS |
| AMHX | Temp Rise Per Hour | 100.0 DEG FAHRENHEIT |
| AMKA | Tank Capacity | 50.0 GALLONS |
| AMLL | Water Inlet Connection Thread Size And Series/Type Designator | 3/4-14 NPT |
| AMLQ | Water Inlet Connection Quantity | 1 |
| AMNZ | Gas Connection Thread Size And Series/Type Designator | 1/2 -14 NPT |
| AMPA | Flue Pipe Size | 3.000 INCHES NOMINAL |
| AHGR | Insulated Feature | INCLUDED |
| ADSM | Mounting Position | VERTICAL |
| ZZZT | Nondefinitive Spec/Std Data | 4 TYPE AND B GRADE |
| ALBM | Operating Control Method | AUTOMATIC |
| FEAT | Special Features | W/O FLUE PIPE AND REPAIR PARTS AND MAINTENANCE NOT REQUIRED AND SINGLE COATED GLASS LINING SHALL BE 0.006 TO 0.015 IN. THK. AND DIP TUBE SHALL WITHSTAND 230 DEG F TEMP |
| ZZZX | Departure From Cited Designator | RD BY FEAT |
| AAJJ | Maximum Operating Pressure | 127.5 POUNDS PER SQUARE INCH |
| AAJP | Outside Surface Treatment | ENAMELED |
| AAJQ | Inside Surface Treatment | GLASS, FUSED |
| AENF | Specific Gas For Which Designed | NATURAL GAS |
| MATT | Material | STEEL |
| Components Related to NSN - 4520-00-143-9548, 4520001439548 | ||||
| 4540-00-080-9881 (4540000809881) | 4520-01-307-4762 (4520013074762) | 4510-01-006-7595 (4510010067595) | 4520-01-330-9413 (4520013309413) | |
| 4520-01-461-5948 (4520014615948) | 4540-00-879-3324 (4540008793324) | 4540-00-962-7404 (4540009627404) | 4520-00-403-7422 (4520004037422) | |
| 4520-01-561-8195 (4520015618195) | 4540-01-219-2974 (4540012192974) | 4520-00-076-2796 (4520000762796) | 4510-01-446-1757 (4510014461757) | |
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