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) | 00-053-4546 (000534546) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Hydro Aire Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 128SCH142-13 | northrop grumman systems corporation | valve safety relief | RFQ |
| A90369-13 | hydro aire inc | valve safety relief | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B ALL ENDS |
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSU | DISK LOADING METHOD | SPRING |
| ADSY | VALVE DISCHARGE FLOW RATE | 1.2 GALLONS PER MINUTE |
| AEHZ | MAXIMUM OPERATING TEMP | 275.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AHNC | CONNECTION STYLE | GASKET SEAL(BOSS) ALL ENDS |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS |
| CBBL | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| CQGM | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES ALL ENDS |
| CSDC | OPENING PRESSURE SETTING | 1285.0 POUNDS PER SQUARE INCH |
| FEAT | SPECIAL FEATURES | FREE REVERSE FLOW |
| MATT | MATERIAL | ALUMINUM ALLOY BODY |
| MATT | MATERIAL | ALUMINUM ALLOY SEAT |
| MATT | MATERIAL | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| MATT | MATERIAL | STEEL CORROSION RESISTING STEM |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID,PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| SFTT | SURFACE TREATMENT | ANODIZE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| THSD | THREAD SERIES DESIGNATOR | UNJF ALL ENDS |
| Relevant Components for NSN - 4820-00-053-4546, 4820000534546 | ||||
| 4820-01-355-0373 (4820013550373) | 4820-01-596-5537 (4820015965537) | 4820-01-428-4292 (4820014284292) | 4820-01-572-3577 (4820015723577) | |
| 4820-01-535-9663 (4820015359663) | 4820-01-278-9880 (4820012789880) | 4820-01-412-2051 (4820014122051) | 4820-12-365-1402 (4820123651402) | |
| 4810-12-380-1387 (4810123801387) | 4820-01-492-3226 (4820014923226) | 4820-01-299-0262 (4820012990262) | 4820-01-263-0040 (4820012630040) | |
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