# NSN 4820-01-197-2021: Valve, Regulating, Temperature

NSN 4820-01-197-2021 (also written 4820011972021; NIIN 01-197-2021) is a valve, regulating, temperature in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-197-2021 (4820011972021)
- NIIN: 01-197-2021 (011972021)
- Item name: VALVE,REGULATING,TEMPERATURE
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAQL | BODY STYLE | — |
| ACKM | FIRST END CONNECTION TYPE | THREADED INTERNAL PIPE |
| ACKN | FIRST END STYLE DESIGNATOR | — |
| ACLL | FIRST END THREAD DIRECTION | RIGHT-HAND |
| ACLR | SECOND END RELATIONSHIP WITH FIRST END | IDENTICAL |
| ADQU | FLOW CONTROL DEVICE | BELLOWS |
| ADQZ | END CONNECTION QUANTITY | 2 |
| AEVT | CAPILLARY TUBE LENGTH | INCHES NOMINAL 120.000 |
| AEVU | BULB LENGTH | INCHES NOMINAL 4.000 |
| AEVX | TEMP ADJUSTABILITY | ADJUSTABLE |
| AEWJ | THERMOSTATIC ELEMENT | LIQUID IMMERSION TYPE |
| MATT | MATERIAL | BULB COPPER ALLOY |
| MATT | MATERIAL | BODY COPPER ALLOY |
| THDS | THREAD SIZE AND SERIES/TYPE DESIGNATOR | FIRST END UNF 0.500-20 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 22234N | 35795 | LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BPN-1 W/ELMT 137-14-00-20 | 35795 | LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BPN-2W/137-14-00-20/68196 | 35795 | LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| Y205664906+N137140020+N68196 | 35795 | LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820011972021&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820011972021
- 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/4820-01-197-2021/
JSON: https://nsnexplorer.com/api/nsn/4820-01-197-2021.json