ASAP Semiconductor is an industry-leading distributor for shopping for parts by National Stock Number (NSN) data, the items featured within this catalog all falling under NSN 4820-01-420-8501 (4820014208501). Toward the top of this page, you will find several details that pertain to this NSN, allowing you to confirm various aspects of these offerings to ensure accurate procurement. Meanwhile, the part numbers that we have available for purchase can be found below, with Request for Quote (RFQ) links provided alongside each should you wish to make a purchase. Our team is also available by phone or email to support you during the procurement process, so never hesitate to take the first step with us.
| Alternative NSN: | 4820014208501 | 
| Manufacturers | Boeing Company The , Circor Aerospace Inc | 
| Item Name | Valve Safety Relief | 
| INC Code | 05488 | 
| Federal Supply Group (FSG) | 48 Valves | 
| Federal Supply Class (FSC) | 4820 Valves Nonpowered | 
| National Item Identification Number (NIIN) | 01-420-8501 (014208501) | 
| NCB Code | USA (01) | 
| Part No | Manufacturer | Item Name | CAGE Code | Type | Status | Availability | RFQ | |
|---|---|---|---|---|---|---|---|---|
| 559A-2MP-30 | circor aerospace inc | valve safety relief | 91816 | a | a | Avl | RFQ |  | 
| 559A-4DB-30 | circor aerospace inc | valve safety relief | 91816 | a | a | Avl | RFQ |  | 
| 559A-4MP-30 | circor aerospace inc | valve safety relief | 91816 | a | a | Avl | RFQ |  | 
| 7M666D2-30 | boeing company the | valve safety relief | 76301 | a | a | Avl | RFQ |  | 
| MRC | Criteria | Characteristic | 
|---|---|---|
| STYL | Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. | 
| AHNC | Connection Style | PLAIN,OPTIONAL END(PIPE) 2ND END | 
| CQGM | Maximum Operating Pressure | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | 
| AEQJ | Minimum Operating Temp | -40.0 DEG FAHRENHEIT | 
| MEDA | Media For Which Designed | AMMONIA, GASEOUS 3RD RESPONSE | 
| ADSU | Disk Loading Method | SPRING | 
| MEDA | Media For Which Designed | AIR 2ND RESPONSE | 
| AEHZ | Maximum Operating Temp | 250.0 DEG FAHRENHEIT SINGLE RESPONSE | 
| MEDA | Media For Which Designed | HYDROGEN 4TH RESPONSE | 
| MEDA | Media For Which Designed | ACETYLENE 1ST RESPONSE | 
| MRC | Decoded Requirement | Clear Text Reply | 
| THSD | Thread Series Designator | NPT ALL ENDS | 
| MATT | Material | ALUMINUM BODY | 
| AAJF | Thread Direction | RIGHT-HAND ALL ENDS | 
| AWLS | Connection Type | THREADED INTERNAL PIPE 2ND END | 
| CQJX | Nominal Thread Size | 0.250 INCHES ALL ENDS | 
| ADQU | Flow Control Device | POPPET | 
| CSDC | Opening Pressure Setting | 30.0 POUNDS PER SQUARE INCH | 
| AWLS | Connection Type | THREADED EXTERNAL PIPE 1ST END | 
| AHNC | Connection Style | PLAIN (PIPE) 1ST END | 
| AQLR | Valve Operation Method | AUTOMATIC | 
| 4810-01-103-6098 (4810011036098) | 4820-01-334-0599 (4820013340599) | 4820-01-537-2778 (4820015372778) | 4820-01-510-0543 (4820015100543) | 
| 4820-01-354-1657 (4820013541657) | 4820-01-338-6230 (4820013386230) | 4820-00-417-5424 (4820004175424) | 4820-01-223-5119 (4820012235119) | 
| 4820-00-626-7481 (4820006267481) | 4820-01-352-3713 (4820013523713) | 4820-00-055-6778 (4820000556778) | 4820-01-240-3067 (4820012403067) | 
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