# NSN 4820-01-573-7919: Seat, Valve

NSN 4820-01-573-7919 (also written 4820015737919; NIIN 01-573-7919) is a seat, valve in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-01-573-7919 (4820015737919)
- NIIN: 01-573-7919 (015737919)
- Item name: SEAT,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 R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-20)
- Acquisition method code: 2

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MFR REF SINGLE MATERIAL RESPONSE TORLON 4203L AS -FGD BY A-OCO CHE-ICAL COR OR MFR REF SINGLE MATERIAL RESPONSE ULTE- 1000 AS -FGD BY GENERAL ELECTRIC CO-ANY |
| MATT | MATERIAL | OVERALL PLASTIC |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 0.259 |
| ADAR | BODY OUTSIDE DIAMETER | INCHES NOMINAL 1.062 |
| ADAS | BODY INSIDE DIAMETER | INCHES NOMINAL 0.562 |
| AGAV | END ITEM IDENTIFICATION | 4820-01-259-1319, P/N 259089 ASSY A; 4820-01-273-4722, BALL VALVE, P/N 258850 ASST D MOD A-B PLAIN |
| CQKM | SEATING SURFACE SHAPE | RADIAL |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAT - 1-WAY SEAL 0-4500 PSI W.P. |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 255669 PC 3 TORLON 4203 | 71905 | DERBYSHIRE MACHINE & TOOL CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 255669 PC 3 TORLON 4203L | 43689 | HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 258850 ITEM 85 TORLON 4203L | 43689 | HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 259089 ITEM 14 TORLON 4203L | 43689 | HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-16 | [SPE7MC26P2727](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015737919) | SEAT, VALVE | FLUIDYNE CORPORATION DBA FLUIDYNE CORP | $5,993.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820015737919&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015737919
- 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/4820-01-573-7919/
JSON: https://nsnexplorer.com/api/nsn/4820-01-573-7919.json