# NSN 4820-01-301-4244: Valve, Check

NSN 4820-01-301-4244 (also written 4820013014244; NIIN 01-301-4244) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 4820-01-301-4244 (4820013014244)
- NIIN: 01-301-4244 (013014244)
- Item name: VALVE,CHECK
- Federal Supply Class: [FSC 4820 Valves, Nonpowered](https://nsnexplorer.com/fsc/4820/)
- Federal Supply Group: [FSG 48](https://nsnexplorer.com/group/48/)
- Acquisition method suffix code: AMSC L: annual buy value is below the screening threshold. (observed 2026-11-06)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSU | DISK LOADING METHOD | SPRING |
| AECS | BOLT HOLE QUANTITY | 8 |
| AEHZ | MAXIMUM OPERATING TEMP | FIRST RESPONSE FAHRENHEIT 450.0 |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ALL ENDS ROUND WITH HOLES |
| AWLS | CONNECTION TYPE | ALL ENDS FLANGE |
| BBJX | MOUNTING POSITION | HORIZONTAL |
| CCFG | VALVE SIZE | INCHES 4.000 |
| CQQF | OPERATING PRESSURE | FIRST RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 300.0 |
| CQQF | OPERATING PRESSURE | SECOND RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 150.0 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 9.000 |
| CWCF | FACE TO FACE DISTANCE | INCHES 11.250 |
| CWCK | NOMINAL THICKNESS | ALL ENDS INCHES 0.688 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | ALL ENDS INCHES 0.750 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | ALL ENDS INCHES 7.500 |
| CWDF | FLANGE FACE DESIGN | ALL ENDS PLAIN |
| FEAT | SPECIAL FEATURES | WASHER USED IN 4 IN. AND ABOVE; COTTER PIN USED ON 2 1/2 IN. AND ABOVE |
| MATT | MATERIAL | FLOW CONTROL DEVICE COPPER ALLOY 922 OR COPPER ALLOY 836 |
| MATT | MATERIAL | BODY COPPER ALLOY 922 OR COPPER ALLOY 836 |
| MATT | MATERIAL | SEAT NICKEL ALLOY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY ASSN STD SINGLE MATERIAL RESPONSE AST- B61 OR ASSN STD SINGLE MATERIAL RESPONSE AST- B62 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SEAT FED SPEC SINGLE MATERIAL RESPONSE QQ-S-288 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FLOW CONTROL DEVICE ASSN STD SINGLE MATERIAL RESPONSE AST- B61 OR ASSN STD SINGLE MATERIAL RESPONSE AST- B62 |
| MEDA | MEDIA FOR WHICH DESIGNED | SECOND RESPONSE WATER-OIL-GAS |
| MEDA | MEDIA FOR WHICH DESIGNED | FIRST RESPONSE STEAM |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| B1620E-4IN | 11859 | HUNT VALVE COMPANY, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B1620E-4IN | 30263 | PIMA VALVE, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7MC-27-T-1405 | 25 | 2026-11-16 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820013014244&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820013014244&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820013014244
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/4820-01-301-4244/
JSON: https://nsnexplorer.com/api/nsn/4820-01-301-4244.json