# NSN 4820-01-583-1118: Parts Kit, Diaphragm Replacement

NSN 4820-01-583-1118 (also written 4820015831118; NIIN 01-583-1118) is a parts kit, diaphragm replacement in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-01-583-1118 (4820015831118)
- NIIN: 01-583-1118 (015831118)
- Item name: PARTS KIT,DIAPHRAGM REPLACEMENT
- 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 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | CONTAINS THE FOLLOWING (ALL FROM CAGE 20722): DIAPHRAGM,VALVE,FLAT P/N A53100 ALSO LISTED AS P/N KT-RFE-5311-3-3090); O-RING P/N KT-RFE-5311-3-323144 AND DYNASEAL P/N KT-RFE-5311-3-309615; REPLACES NSNS 4820-01-241-2610, 5331-01-273-9935, AND 5330-01-245-0463 RESPECTIVELY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| KT-RFE-5211-3 | 20722 | THE ENTWISTLE COMPANY LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KT-RFE-5311-3 | 20722 | THE ENTWISTLE COMPANY LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-14 | [SPE7M326V4549](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015831118) | PARTS KIT, DIAPHRAGM | THE ENTWISTLE COMPANY LLC | $1,093.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820015831118&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015831118
- 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/4820-01-583-1118/
JSON: https://nsnexplorer.com/api/nsn/4820-01-583-1118.json