| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-420-5485 (004205485) |
| NCB Code | USA (00) |
| Manufacturer | Circor Aerospace Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A 1ST END" |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END" |
| ADQU | FLOW CONTROL DEVICE | POPPET" |
| ADSU | DISK LOADING METHOD | SPRING" |
| AEHZ | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE" |
| AHNC | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END" |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC" |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END" |
| CQCY | ADJUSTABLE PRESSURE RANGE | +10.0/+30.0 POUNDS PER SQUARE INCH" |
| CQGM | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE" |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES 1ST END" |
| CSDC | OPENING PRESSURE SETTING | 25.0 POUNDS PER SQUARE INCH" |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END" |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 BODY" |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 FLOW CONTROL DEVICE AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE" |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 SEAT" |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY" |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE" |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SEAT" |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | AMMONIA, GASEOUS 5TH RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON 2ND RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | HELIUM 3RD RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDROGEN 4TH RESPONSE" |
| SFTT | SURFACE TREATMENT | ANODIZE" |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU W/BAFFLE" |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END" |
| AAJD | THREAD CLASS | 3A 1ST END" |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END" |
| ADQU | FLOW CONTROL DEVICE | POPPET" |
| ADSU | DISK LOADING METHOD | SPRING" |
| AEHZ | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE" |
| AHNC | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END" |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC" |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END" |
| CQCY | ADJUSTABLE PRESSURE RANGE | +10.0/+30.0 POUNDS PER SQUARE INCH" |
| CQGM | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE" |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES 1ST END" |
| CSDC | OPENING PRESSURE SETTING | 25.0 POUNDS PER SQUARE INCH" |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END" |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 BODY" |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 FLOW CONTROL DEVICE AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE" |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 SEAT" |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY" |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE" |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SEAT" |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | AMMONIA, GASEOUS 5TH RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON 2ND RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | HELIUM 3RD RESPONSE" |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDROGEN 4TH RESPONSE" |
| SFTT | SURFACE TREATMENT | ANODIZE" |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU W/BAFFLE" |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END" |
| Components Related to NSN - 4820-00-420-5485, 4820004205485 | ||||
| 4810-01-379-3588 (4810013793588) | 4810-00-763-4834 (4810007634834) | 4820-01-524-6893 (4820015246893) | 4820-01-237-2801 (4820012372801) | |
| 4820-01-103-6880 (4820011036880) | 4820-01-312-1011 (4820013121011) | 4810-01-509-0551 (4810015090551) | 4820-01-345-9229 (4820013459229) | |
| 4810-01-376-2787 (4810013762787) | 4820-01-241-5464 (4820012415464) | 4810-01-386-3270 (4810013863270) | 4820-01-312-5840 (4820013125840) | |
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