AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-169-0654 (001690654) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Hydro Aire Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 1128SCH403-3 | northrop grumman systems corporation | valve safety relief | RFQ |
| 72415 | hydro aire inc | valve safety relief | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSU | DISK LOADING METHOD | SPRING |
| AEHZ | MAXIMUM OPERATING TEMP | 275.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AHNC | CONNECTION STYLE | GASKET SEAL(BOSS) 1ST END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED INTERNAL BOSS 1ST END |
| CMLP | THREAD QUANTITY PER INCH | 20 1ST END |
| CQGM | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES 1ST END |
| CSDC | OPENING PRESSURE SETTING | 770.0 POUNDS PER SQUARE INCH |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |
| MATT | MATERIAL | ALUMINUM ALLOY BODY |
| MATT | MATERIAL | ALUMINUM ALLOY FLOW CONTROL DEVICE |
| MATT | MATERIAL | ALUMINUM ALLOY SEAT |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU W/BAFFLE |
| THSD | THREAD SERIES DESIGNATOR | UNJF 1ST END |
| Relevant Components for NSN - 4820-00-169-0654, 4820001690654 | ||||
| 4820-01-437-8926 (4820014378926) | 4820-01-258-2410 (4820012582410) | 4820-00-432-1714 (4820004321714) | 4820-01-271-9629 (4820012719629) | |
| 4820-01-578-9600 (4820015789600) | 4820-00-092-6590 (4820000926590) | 4820-01-417-2811 (4820014172811) | 4820-01-365-0880 (4820013650880) | |
| 4820-01-697-1452 (4820016971452) | 4820-15-149-7310 (4820151497310) | 4820-00-506-2869 (4820005062869) | 4820-00-330-9420 (4820003309420) | |
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