NSN 4820-01-174-7789 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-174-7789. Manufacturer of record part number: EA1044.
Also searched as4820-01-174-7789 ·
4820011747789 ·
NIIN 011747789 ·
01-174-7789 ·
FSC 4820 Valves, Nonpowered · CAGE 13829 · EA1044
Flange Seat to Disk End Height: 1.045 INCHES NOMINAL IN
Flange Diameter: 0.866 INCHES NOMINAL IN
Style Designator: POPPET
Seat Angle: 15.0 DEGREES NOMINAL
Inside Diameter: 0.535 INCHES NOMINAL IN
Material: STEEL
Identification
NSN: 4820-01-174-7789
NIIN: 011747789
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: EA1044
Manufacturer: Parker Hannifin Corporation Div Cylinder Division
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-174-7789, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker Hannifin Corporation Div Cylinder Division. 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.
Parker Hannifin Corporation Div Cylinder Division (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
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 4820-01-174-7789?
NSN 4820-01-174-7789 is a Disk,valve, manufactured by Parker Hannifin Corporation Div Cylinder Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-174-7789?
NSN 4820-01-174-7789 has 1 manufacturer part number on file: EA1044 (Parker Hannifin Corporation Div Cylinder Division).
What are the specifications of EA1044?
Key specifications for EA1044: Shank Diameter: 0.748 INCHES NOMINAL IN; Flange Seat to Disk End Height: 1.045 INCHES NOMINAL IN; Flange Diameter: 0.866 INCHES NOMINAL IN; Overall Height: 1.188 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-174-7789 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.