The Piston Assembly,valve, cataloged under National Stock Number 4820-00-830-9251, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Danfoss Fluid Power Inc Easley Opn. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-830-9251 |
| Primary Part Number | 573031 |
| Item Name | Piston Assembly,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Danfoss Fluid Power Inc Easley Opn |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL;1.535 IN.O/A LG;0.750 IN.DIA;1.000 IN.PISTON LENGTH;FOUR 0.278 IN.DIA PORTS INSIDE PISTON IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 573031 PRIMARY | Danfoss Fluid Power Inc Easley Opn (USA) |
NSN 4820-00-830-9251 is a Piston Assembly,valve, manufactured by Danfoss Fluid Power Inc Easley Opn, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-830-9251 has 1 manufacturer part number on file: 573031 (Danfoss Fluid Power Inc Easley Opn).
Key specifications for 573031: General Characteristics Item Description: STEEL;1.535 IN.O/A LG;0.750 IN.DIA;1.000 IN.PISTON LENGTH;FOUR 0.278 IN.DIA PORTS INSIDE PISTON IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.