PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C189-2Diaphragm,actuator Valve,special

Zenith Fuel Systems Llc · NSN 4820-00-912-4069 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-912-4069 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-912-4069. Primary manufacturer part number: C189-2.
Features
  • Diaphragm,actuator Valve,special — FSC 4820
  • Material: RUBBER SYNTHETIC
  • Style Designator: SPECIAL SHAPED
  • 3 verified cross-references
  • Primary manufacturer: Zenith Fuel Systems Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-00-912-4069, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Zenith Fuel Systems Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-912-4069
Primary Part NumberC189-2
Item NameDiaphragm,actuator Valve,special
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerZenith Fuel Systems Llc
StatusACTIVE
MaterialRUBBER SYNTHETIC
Style DesignatorSPECIAL SHAPED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2520-00-383-4169 INTERCHANGEABLE
Clutch Kit,facing a
5935-00-872-5950C189-2 INTERCHANGEABLE
Shell,electrical Connector
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5935-00-872-6373C189-1 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5955-01-357-8905Y180-11000 INTERCHANGEABLE
Crystal Unit,quartz
Giga-Tronics Incorporated Dba Giga-Tronics
Cross-Reference Index
Part NumberManufacturer
4820009124069 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
C189-2 PRIMARY Zenith Fuel Systems Llc (USA)
C189-1 Zenith Fuel Systems Llc (USA)
Related Parts
2520-00-383-4169INTERCHANGEABLE
CLUTCH KIT,FACING A
5935-00-872-5950INTERCHANGEABLE
SHELL,ELECTRICAL CONNECTOR
C189-2
5935-00-872-6373INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C189-1
5955-01-357-8905INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
Y180-11000

Frequently Asked Questions

What is NSN 4820-00-912-4069?

NSN 4820-00-912-4069 is a Diaphragm,actuator Valve,special, manufactured by Zenith Fuel Systems Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-912-4069?

NSN 4820-00-912-4069 has 3 cross-referenced part numbers: 4820009124069 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), C189-2 (Zenith Fuel Systems Llc), C189-1 (Zenith Fuel Systems Llc).

What NSN replaces 4820-00-912-4069?

There are 4 known substitutes for 4820-00-912-4069: 2520-00-383-4169, 5935-00-872-5950, 5935-00-872-6373 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C189-2?

Key specifications for C189-2: Material: RUBBER SYNTHETIC; Style Designator: SPECIAL SHAPED. 2 total characteristics are documented in the Federal Logistics Information System.

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