PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

118609Diaphragm,valve,flat

Transdigm Inc Div Aero Fluid Products · NSN 4820-00-194-4880 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-194-4880 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-194-4880. Primary manufacturer part number: 118609.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material: ALUMINUM ALLOY
  • Outside Diameter: 1.260 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Transdigm Inc Div Aero Fluid Products
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-194-4880, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Transdigm Inc Div Aero Fluid Products. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-194-4880
Primary Part Number118609
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTransdigm Inc Div Aero Fluid Products
StatusACTIVE
MaterialALUMINUM ALLOY
Outside Diameter1.260 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5920-00-221-50289001027 INTERCHANGEABLE
Fuseholder,block
Us Army Aviation and Missile Command
6210-01-583-7631118609 INTERCHANGEABLE
Light,indicator
Jered Llc
Cross-Reference Index
Part NumberManufacturer
118609 PRIMARY Transdigm Inc Div Aero Fluid Products (USA)
Related Parts
5920-00-221-5028INTERCHANGEABLE
FUSEHOLDER,BLOCK
9001027
6210-01-583-7631INTERCHANGEABLE
LIGHT,INDICATOR
118609

Frequently Asked Questions

What is NSN 4820-00-194-4880?

NSN 4820-00-194-4880 is a Diaphragm,valve,flat, manufactured by Transdigm Inc Div Aero Fluid Products, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-194-4880?

NSN 4820-00-194-4880 has 1 cross-referenced part number: 118609 (Transdigm Inc Div Aero Fluid Products).

What NSN replaces 4820-00-194-4880?

There are 2 known substitutes for 4820-00-194-4880: 5920-00-221-5028, 6210-01-583-7631. Verify interchangeability with system specifications before substitution.

What are the specifications of 118609?

Key specifications for 118609: Material: ALUMINUM ALLOY; Outside Diameter: 1.260 INCHES NOMINAL IN. 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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