PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LA91226Piston,valve

Turbodyne Div of Dresser Industries Inc See Code 0br59 · NSN 4820-00-104-6239 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-104-6239 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-104-6239. Primary manufacturer part number: LA91226.
Features
  • Piston,valve — FSC 4820
  • Material: STEEL
  • Outside Diameter: 1.000 INCHES NOMINAL IN
  • Valve Design Control Activity: 93235
  • 4 verified cross-references
  • Primary manufacturer: Turbodyne Div of Dresser Industries Inc See Code 0br59
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-00-104-6239, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Turbodyne Div of Dresser Industries Inc See Code 0br59. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-104-6239
Primary Part NumberLA91226
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTurbodyne Div of Dresser Industries Inc See Code 0br59
StatusCANCELLED
MaterialSTEEL
Outside Diameter1.000 INCHES NOMINAL IN
Valve Design Control Activity93235
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
3010-00-085-5564 INTERCHANGEABLE
Shifter Fork,nonvehicular
3110-00-100-0570019-10A1697 INTERCHANGEABLE
Cup,tapered Roller Bearing
Tvh Parts Co.
Cross-Reference Index
Part NumberManufacturer
LA91226 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
LA91226 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
LA91226 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
91226 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
Related Parts
3010-00-085-5564INTERCHANGEABLE
SHIFTER FORK,NONVEHICULAR
3110-00-100-0570INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
019-10A1697

Frequently Asked Questions

What is NSN 4820-00-104-6239?

NSN 4820-00-104-6239 is a Piston,valve, manufactured by Turbodyne Div of Dresser Industries Inc See Code 0br59, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-104-6239?

NSN 4820-00-104-6239 has 4 cross-referenced part numbers: LA91226 (Turbodyne Div of Dresser Industries Inc See Code 0br59), LA91226 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), LA91226 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 91226 (Turbodyne Div of Dresser Industries Inc See Code 0br59).

What NSN replaces 4820-00-104-6239?

There are 2 known substitutes for 4820-00-104-6239: 3010-00-085-5564, 3110-00-100-0570. Verify interchangeability with system specifications before substitution.

What are the specifications of LA91226?

Key specifications for LA91226: Material: STEEL; Outside Diameter: 1.000 INCHES NOMINAL IN; Overall Length: 1.355 INCHES NOMINAL IN; Valve Design Control Activity: 93235. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-104-6239 still in active supply?

NSN 4820-00-104-6239 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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