ASAP Aviation Procurement is pleased to announce that part number 2503156 of NSN 4820-01-280-2983 is now available and in stock. We can get you one of the fastest and most competitive quotes on this part. Part number 2503156 is a Valve Safety Relief manufactured by Envirovac Inc under CAGE Code 58568. Simply fill out the Request for Quote (RFQ) form provided here to get started on your quote. In order to make sure that we get you your quote in a timely manner, please take the time to make sure that all fields are completely filled out, particularly the asterisk-marked (*) fields like Parts Needed By and Quantity (ea).
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 4820-01-280-2983 Item PartTypeName: VALVE,SAFETY RELIEF | 4820 | 012802983 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | A | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| 1/2 FIGURE 80-4S 20IN HG | 2 | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| ADQU | FLOW CONTROL DEVICE | BALL |
| AHNC | CONNECTION STYLE | PLAIN PIPE) 1ST END |
| AHNC | CONNECTION STYLE | PLAIN,OPTIONAL END PIPE) 2ND END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| AWLS | CONNECTION TYPE | THREADED INTERNAL PIPE 2ND END |
| CQJX | NOMINAL THREAD SIZE | 0.500 INCHES 1ST END |
| CQJX | NOMINAL THREAD SIZE | 0.750 INCHES 2ND END |
| FEAT | SPECIAL FEATURES | VALVE IS USED AS A VACUUM RELIEF VALVE SET AT 20 INCH HG VACUUM |
| MATT | MATERIAL | COPPER ALLOY BODY |
| MATT | MATERIAL | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| MATT | MATERIAL | STEEL CORROSION RESISTING SEAT |
| STYL | STYLE DESIGNATOR | ANGLE |
| THSD | THREAD SERIES DESIGNATOR | NPT 1ST END |
| THSD | THREAD SERIES DESIGNATOR | NPT 2ND END |
![]() |
AS9120B and ISO 9001:2015 |
![]() |
Aviation Suppliers Association Member |
![]() |
FAA AC 0056B Accredited |
![]() |
AS 6081:2012 Certification |
![]() |
ESD S20.20-2014 Certification |
Before You Go, Take a look To Our Extensive Range of NSN Parts Catalog. We Provide High Quality NSN Parts with 24/7 Quotation Facility.
Request for Quote