# NSN 4820-01-521-4328: Parts Kit, Vent Valve

NSN 4820-01-521-4328 (also written 4820015214328; NIIN 01-521-4328) is a parts kit, vent valve in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4820-01-521-4328 (4820015214328)
- NIIN: 01-521-4328 (015214328)
- Item name: PARTS KIT,VENT VALVE
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | 4820-01-500-8053 VENT VALVE |
| AJJW | COMPONENT QUANTITY | 4 |
| AJKC | SUPPLY ITEMS AND QUANTITIES | 1 TICONA SILICON HUB, 1 NITRILE RUBBER AIR SEAL, 1 COMPRESSION SPRING, 1 O-RING |
| AJKE | END ITEM SOURCE | 09CS7 |
| AKVY | ACCESSORY CONTROLLING AGENCY | 09CS7 |
| AYDS | END ITEM NAME | VENT VALVE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| NW000396 | 09CS7 | HDT EXPEDITIONARY SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NW000396-SS | 09CS7 | HDT EXPEDITIONARY SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-01 | $65.00 | 160 | WINDWARD ENTERPRISES, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015214328) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-01 | [SPE7MC27V0001](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015214328) | PARTS KIT, VENT VALVE | WINDWARD ENTERPRISES, LLC | $10,400.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820015214328&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015214328
- 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/4820-01-521-4328/
JSON: https://nsnexplorer.com/api/nsn/4820-01-521-4328.json