# NSN 4820-00-959-9854: Disk, Valve

NSN 4820-00-959-9854 (also written 4820009599854; NIIN 00-959-9854) is a disk, valve in Federal Supply Class 4820, Valves, Nonpowered. 3 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 4820-00-959-9854 (4820009599854)
- NIIN: 00-959-9854 (009599854)
- Item name: DISK,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 |
| --- | --- | --- |
| AARX | INSIDE DIAMETER | INCHES NOMINAL 0.472 |
| AAZE | SHANK DIAMETER | INCHES NOMINAL 0.683 |
| ABHE | OUTSIDE DIAMETER | INCHES MINIMUM 0.868 AND INCHES MAXIMUM 0.870 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 1.370 |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | INCHES NOMINAL 1.035 |
| CRRB | SEAT ANGLE | DEGREES NOMINAL 52.0 |
| MATT | MATERIAL | STEEL CORROSION RESISTING |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 155952-0001 | 99657 | MAROTTA CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 155952-001 | 99657 | MAROTTA CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 155952-1 | 99657 | MAROTTA 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=4820009599854&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820009599854
- 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/4820-00-959-9854/
JSON: https://nsnexplorer.com/api/nsn/4820-00-959-9854.json