# NSN 4820-01-082-7257: Valve, Hydraulic, Dump

NSN 4820-01-082-7257 (also written 4820010827257; NIIN 01-082-7257) is a valve, hydraulic, dump in Federal Supply Class 4820, Valves, Nonpowered. 10 manufacturer part numbers from 6 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-082-7257 (4820010827257)
- NIIN: 01-082-7257 (010827257)
- Item name: VALVE,HYDRAULIC,DUMP
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES MAXIMUM 2.368 |
| ADAV | OVERALL DIAMETER | INCHES MINIMUM 0.416 AND INCHES MAXIMUM 0.421 |
| AGAV | END ITEM IDENTIFICATION | MANIFOLD ASSEMBLY JET FUEL START SYSTEM 16H1904-1 CAGEC 81755; T.O. 1F-16A-4-29 FIG 4,I-11 |
| ARJA | PRESSURE RATING | POUNDS PER SQUARE INCH (PSI) 3000.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | VALVE, HYDRAULIC DUMP |
| FEAT | SPECIAL FEATURES | WIDTH ACROSS FLATS: 1" HEXAGON HEAD |
| FTLD | FUNCTIONAL DESCRIPTION | WEIGHT SHALL NOT EXCEED 0.20LBS |
| SPCL | SPECIAL TEST FEATURES | OPERATING PRESSURE: 3000PSIG; PROOF PRESSURE: 4500PSIG; BURST PRESSURE: 7500PSIG |
| SUPP | SUPPLEMENTARY FEATURES | THERMAL SHOCK FLUID TEMPERATURE: -65 DEGREES FAHRENHEIT TO +160 DEGREES FAHRENHEIT |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | ENVIRONMENTAL AMBIENT TEMPERATURES FROM -65 DEGREES FAHRENHEIT TO +275 DEGREES FAHRENHEIT; FLUID TEMPERATURE: MIL-H-5606 -65 DEGREES FAHRENHEIT TO +275 DEGREES FAHRENHEIT OR MIL-H-83282 -40 DEGREES FAHRENHEIT TO +275 DEGREES FAHRENHEIT; VIBRATION PER MIL-STD-810B, TABLE 514.1-11 AND FIGURE 514.1-2 CURVE H |
| ZZZV | FSC APPLICATION DATA | HYDRAULIC SYSTEM,ACFT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 290C-8A | 91511 | AUTO-VALVE, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4820PL1604903 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4820PL1605283 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4820PL2240047 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AC-A019-45D380 | 18350 | PALL AEROPOWER CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7903-2 | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DRPHL00008-8 | 91511 | AUTO-VALVE, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M9050DCD001 | 6L817 | NATIONAL MACHINE COMPANY DBA NMG AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| VA018 | 24984 | HYDRAFLOW | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| VA018-2 | 24984 | HYDRAFLOW | [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=4820010827257&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820010827257
- 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/4820-01-082-7257/
JSON: https://nsnexplorer.com/api/nsn/4820-01-082-7257.json