PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81750-1Valve,regulating,fluid Pressure

Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator · NSN 4820-01-220-1789 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-220-1789 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-220-1789. Primary manufacturer part number: 81750-1.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-220-1789, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-220-1789
Primary Part Number81750-1
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4730-00-187-3600AS5174-0604 INTERCHANGEABLE
Reducer,boss
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
81750-1 PRIMARY Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
81750-1 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
4730-00-187-3600INTERCHANGEABLE
REDUCER,BOSS
AS5174-0604

Frequently Asked Questions

What is NSN 4820-01-220-1789?

NSN 4820-01-220-1789 is a Valve,regulating,fluid Pressure, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-220-1789?

NSN 4820-01-220-1789 has 2 cross-referenced part numbers: 81750-1 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 81750-1 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4820-01-220-1789?

There is 1 known substitute for 4820-01-220-1789: 4730-00-187-3600. Verify interchangeability with system specifications before substitution.

What are the specifications of 81750-1?

Key specifications for 81750-1: Special Features: 4.00 IPS,225 PSI RATED. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-220-1789 still in active supply?

NSN 4820-01-220-1789 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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