# NSN 4820-01-453-2478: Valve, Vent

NSN 4820-01-453-2478 (also written 4820014532478; NIIN 01-453-2478) is a valve, vent 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: 4820-01-453-2478 (4820014532478)
- NIIN: 01-453-2478 (014532478)
- Item name: VALVE,VENT
- 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 Q: the government lacks adequate data or rights, but breakout to competition is expected. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AECS | BOLT HOLE QUANTITY | 8 |
| AGAV | END ITEM IDENTIFICATION | WASP CLASS LHD |
| ARKN | FLANGE SHAPE | ALL ENDS ROUND WITH HOLES |
| AWLS | CONNECTION TYPE | ALL ENDS FLANGE |
| CCFG | VALVE SIZE | INCHES 8.000 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 13.500 |
| CWCF | FACE TO FACE DISTANCE | INCHES 14.562 |
| CWCK | NOMINAL THICKNESS | ALL ENDS INCHES 1.125 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | ALL ENDS INCHES 0.875 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | ALL ENDS INCHES 11.750 |
| CWDF | FLANGE FACE DESIGN | ALL ENDS RAISED STRAIGHT |
| CWDH | RAISED FACE NOMINAL HEIGHT | ALL ENDS INCHES 0.062 |
| CWDL | RAISED FACE NOMINAL DIAMETER | ALL ENDS INCHES 10.625 |
| MATT | MATERIAL | BODY STEEL |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 52-90F 8 IN | 09032 | TATE ANDALE, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 52-95FMOD 8 IN | 09032 | TATE ANDALE, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-01 | [SPE7M126V116V](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014532478) | VALVE, VENT | TATE ANDALE, LLC | $77,475.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820014532478&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014532478
- 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/4820-01-453-2478/
JSON: https://nsnexplorer.com/api/nsn/4820-01-453-2478.json