| 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 | ||||
| 4510-00-411-6205 (4510004116205) | 4540-00-110-3969 (4540001103969) | 4520-01-632-6562 (4520016326562) | 4510-00-277-7166 (4510002777166) | |
| 4510-00-277-1015 (4510002771015) | 4520-01-331-2797 (4520013312797) | 4540-01-239-4289 (4540012394289) | 4520-00-402-5593 (4520004025593) | |
| 4540-00-632-0231 (4540006320231) | 4510-00-529-4108 (4510005294108) | 4520-01-368-0599 (4520013680599) | 4540-00-119-0604 (4540001190604) | |
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