# NSN 4820-01-176-6734: Valve, Butterfly

NSN 4820-01-176-6734 (also written 4820011766734; NIIN 01-176-6734) is a valve, butterfly in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-01-176-6734 (4820011766734)
- NIIN: 01-176-6734 (011766734)
- Item name: VALVE,BUTTERFLY
- 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 H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 180.0 |
| AGAV | END ITEM IDENTIFICATION | MODEL R1020-22AA-1FM |
| AQLR | VALVE OPERATION METHOD | MANUAL |
| CCFG | VALVE SIZE | INCHES 3.000 |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 200.0 |
| FEAT | SPECIAL FEATURES | MARINE TRIM THROTTLING HANDLE. NON-SPARKING FOR FUEL SERVICE. |
| MATT | MATERIAL | SEAT RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| MATT | MATERIAL | BODY STEEL UNS J03002 |
| MATT | MATERIAL | PACKING RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| MATT | MATERIAL | STEM STEEL COMP 316 |
| MATT | MATERIAL | FLOW CONTROL DEVICE STEEL COMP 316 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FLOW CONTROL DEVICE ASSN STD SINGLE MATERIAL RESPONSE AST- A296 GRADE CF-8- |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | STEM ASSN STD SINGLE MATERIAL RESPONSE AISI 316 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY ASSN STD SINGLE MATERIAL RESPONSE AST- A216 GRADE WCB |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1159031, 3" R1020-22AA-1FM | 1NB39 | DOVER RESOURCES, INC. DIV NORRISEAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3" R1020-22AA-1FM | 1NB39 | DOVER RESOURCES, INC. DIV NORRISEAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3" R1020-22AA-1FM | 91363 | NORRISEAL NORRIS VALUES DIV DBA DOVER CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 911-439 | 91363 | NORRISEAL NORRIS VALUES DIV DBA DOVER CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 911E439 | 1NB39 | DOVER RESOURCES, INC. DIV NORRISEAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 911E439 | 91363 | NORRISEAL NORRIS VALUES DIV DBA DOVER CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-03 | [SPE7MC26P2853](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820011766734) | VALVE, BUTTERFLY | — | $2,919.96 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820011766734&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820011766734
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/4820-01-176-6734/
JSON: https://nsnexplorer.com/api/nsn/4820-01-176-6734.json