NSN 4820-01-698-1780 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-698-1780. Manufacturer of record part number: 3CA20-0.5S.
Also searched as4820-01-698-1780 ·
4820016981780 ·
NIIN 016981780 ·
01-698-1780 ·
FSC 4820 Valves, Nonpowered · CAGE 9G527 · 3CA20-0.5S
Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp: 90.0 CELSIUS SINGLE RESPONSE DEGC
Media for Which Designed: OIL, HYDRAULIC SINGLE RESPONSE
Material: ALUMINUM BODY
Valve Operation Method: AUTOMATIC
Identification
NSN: 4820-01-698-1780
NIIN: 016981780
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3CA20-0.5S
Manufacturer: Eaton Corp Hydraulics Div
General Description
The Valve,check, cataloged under National Stock Number 4820-01-698-1780, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Corp Hydraulics Div. Government technical data includes 7 specifications, 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.
Technical Specifications
Parameter
Value
NSN
4820-01-698-1780
Primary Part Number
3CA20-0.5S
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Eaton Corp Hydraulics Div
Status
ACTIVE
Flow Control Device
BALL
Style Designator
DROP-IN CARTRIDGE
Operating Pressure
5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-698-1780?
NSN 4820-01-698-1780 is a Valve,check, manufactured by Eaton Corp Hydraulics Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-698-1780?
NSN 4820-01-698-1780 has 1 manufacturer part number on file: 3CA20-0.5S (Eaton Corp Hydraulics Div).
What are the specifications of 3CA20-0.5S?
Key specifications for 3CA20-0.5S: Flow Control Device: BALL; Style Designator: DROP-IN CARTRIDGE; Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 90.0 CELSIUS SINGLE RESPONSE DEGC. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-698-1780 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.