| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-204-1811 (002041811) |
| NCB Code | USA (00) |
| Manufacturer | Triumph Actuation Systems Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A ALL ENDS |
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSU | DISK LOADING METHOD | SPRING |
| ADSY | VALVE DISCHARGE FLOW RATE | 3.0 GALLONS PER MINUTE |
| AEHZ | MAXIMUM OPERATING TEMP | -65.0 DEG FAHRENHEIT 1ST RESPONSE |
| AEHZ | MAXIMUM OPERATING TEMP | 200.0 DEG FAHRENHEIT 2ND RESPONSE |
| AHNC | CONNECTION STYLE | FLARELESS (TUBE) ALL ENDS |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS |
| CBBL | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| CMLP | THREAD QUANTITY PER INCH | 20 ALL ENDS |
| CQCY | ADJUSTABLE PRESSURE RANGE | 500.0 TO 550.0 POUNDS PER SQUARE INCH |
| CQGM | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES ALL ENDS |
| CQRB | SEAT ANGLE | 37.0 DEGREES ALL ENDS |
| CSDC | OPENING PRESSURE SETTING | 500.0 POUNDS PER SQUARE INCH |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES ALL ENDS |
| FEAT | SPECIAL FEATURES | MAXIMUM FREE FLOW CRACKING PRESSURE 5 PSI |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 BODY |
| MATT | MATERIAL | STEEL COMP 440F FLOW CONTROL DEVICE |
| MATT | MATERIAL | STEEL CORROSION RESISTING SEAT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5632 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3,ALLOY2024 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| MEDA | MEDIA FOR WHICH DESIGNED | FUEL/OIL,HYDROCARBON SINGLE RESPONSE |
| SFTT | SURFACE TREATMENT | ANODIZE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU |
| THSD | THREAD SERIES DESIGNATOR | UNF ALL ENDS |
| Relevant Components for NSN - 4820-00-204-1811, 4820002041811 | ||||
| 4820-01-038-4466 (4820010384466) | 4820-01-273-0523 (4820012730523) | 4810-01-109-0757 (4810011090757) | 4820-01-252-6182 (4820012526182) | |
| 4820-00-337-1107 (4820003371107) | 4820-01-443-7595 (4820014437595) | 4820-01-184-1099 (4820011841099) | 4820-00-674-6082 (4820006746082) | |
| 4820-01-547-9309 (4820015479309) | 4820-01-346-0633 (4820013460633) | 4820-01-627-9771 (4820016279771) | 4810-01-466-3592 (4810014663592) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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