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Quality guaranteed We sell only warrantied and traceable partsThank you for your interest in our available NSN parts P491 and components on Purchasing Union. P491 is described as a Valve Safety Relief part, and it is manufactured by Circor Aerospace Inc. This component is readily available for purchase today, and our team of industry experts are on standby 24/7x365 to provide you with rapid-lead times and competitive pricing on all that we carry. To begin the purchasing process, you may submit an Instant RFQ form as provided through our website. Once it is received, a member of our staff will reach out to you in 15 minutes or less to provide a personalized quote that is crafted to fit your individual needs.
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Purchasing Union is a state of the art purchasing platform, and we are a leading independent distributor of P491 that cater to a diverse set of industries and applications. To ensure the quality of our inventory for our customers, we choose to only source our parts from top global manufacturers that we trust, such as Circor Aerospace Inc. We also ensure that every part is rigorously tested, inspected, and cross-referenced before being shipped. Peruse our inventory at your leisure to find a multitude of top requested parts like 4820000156231, and our team is ready to serve as your strategic sourcing partner today. (CAGE Code 91816).
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 4820-00-015-6231 Item Description: Valve Safety Relief | 4820 | 000156231 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | U | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| P491 | 2 | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSR | BONNET TYPE | INSIDE SPRING |
| ADST | BONNET ATTACHMENT METHOD | INTEGRAL |
| ADSU | DISK LOADING METHOD | SPRING |
| AEHZ | MAXIMUM OPERATING TEMP | -54.0 DEG CELSIUS 1ST RESPONSE |
| AEHZ | MAXIMUM OPERATING TEMP | 110.0 DEG CELSIUS 2ND 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 |
| CBBL | FEATURES PROVIDED | VALVE STEM LOCK SHIELD |
| CQGM | MAXIMUM OPERATING PRESSURE | 50.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.375 INCHES 1ST END |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,ALLOY2024,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| SFTT | SURFACE TREATMENT | ANODIZE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE1,CLASS1 MIL SPEC SINGLE TREATMENT RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU |
| TEST | TEST DATA DOCUMENT | 18876-10177850 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRA |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END |
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