PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8350-5 2.50INStem,fluid Valve

William E Williams Valve Corp · NSN 4820-01-189-4705 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-189-4705 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-189-4705. Primary manufacturer part number: 8350-5 2.50IN.
Features
  • Stem,fluid Valve — FSC 4820
  • Material: STEEL CORROSION RESISTING
  • Valve Model Number for Which Designed: 15F8R
  • Features Provided: RISING STEM
  • Material Document and Classification: ASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
  • Stem Actuating End Type: THREADED EXTERNALLY
  • Valve Type for Which Designed: GATE
  • Valve Size for Which Designed: 2.500 INCHES IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-189-4705, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William E Williams Valve Corp. Government technical data includes 7 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-189-4705
Primary Part Number8350-5 2.50IN
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliam E Williams Valve Corp
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Valve Model Number for Which Designed15F8R
Features ProvidedRISING STEM
Material Document and ClassificationASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
Stem Actuating End TypeTHREADED EXTERNALLY
Valve Type for Which DesignedGATE
Valve Size for Which Designed2.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-089-0485 INTERCHANGEABLE
Extractor Set,screw
3110-00-155-672243309 INTERCHANGEABLE
Bearing,ball,annular
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
3010-00-293-4599 INTERCHANGEABLE
Insert,flexible Coupling
2825-00-388-6902D15-308BPC214 INTERCHANGEABLE
Lever,overspeed Tri
Northrop Grumman Systems Corporation Div Marine Systems
4510-00-402-54688350 INTERCHANGEABLE
Valve,shower and Tub
Moen Inc
1620-00-627-98888372M2 INTERCHANGEABLE
Shaft,landing Gear,extension Ret
Cef Industries, Llc Dba Cef Industries Inc
5950-00-978-9544 INTERCHANGEABLE
Transformer,power
5962-01-054-5744DAC1106/002 INTERCHANGEABLE
Microcircuit,digital
Analog Devices, Inc. Div Corporate Headquarters
7510-01-161-697352100701 INTERCHANGEABLE
Ribbon,inking
Oki Data Americas, Inc.
5340-01-218-4373411750 INTERCHANGEABLE
Standoff,threaded,spacing
Avtron Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
15F8R NO 5 2 1/2IN American Academy of Pediatric Dentistry (USA)
8350-5 2.50IN PRIMARY William E Williams Valve Corp (USA)
8350 American Academy of Pediatric Dentistry (USA)
Related Parts
5120-00-089-0485INTERCHANGEABLE
EXTRACTOR SET,SCREW
3110-00-155-6722INTERCHANGEABLE
BEARING,BALL,ANNULAR
43309
3010-00-293-4599INTERCHANGEABLE
INSERT,FLEXIBLE COUPLING
2825-00-388-6902INTERCHANGEABLE
LEVER,OVERSPEED TRI
D15-308BPC214
4510-00-402-5468INTERCHANGEABLE
VALVE,SHOWER AND TUB
8350
1620-00-627-9888INTERCHANGEABLE
SHAFT,LANDING GEAR,EXTENSION RET
8372M2
5950-00-978-9544INTERCHANGEABLE
TRANSFORMER,POWER
5962-01-054-5744INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
DAC1106/002
7510-01-161-6973INTERCHANGEABLE
RIBBON,INKING
52100701
5340-01-218-4373INTERCHANGEABLE
STANDOFF,THREADED,SPACING
411750
5365-01-294-4212INTERCHANGEABLE
PLUG,MACHINE THREAD
8350
3040-01-339-8576INTERCHANGEABLE
SHAFT,SHOULDERED
8350

Frequently Asked Questions

What is NSN 4820-01-189-4705?

NSN 4820-01-189-4705 is a Stem,fluid Valve, manufactured by William E Williams Valve Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-189-4705?

NSN 4820-01-189-4705 has 3 cross-referenced part numbers: 15F8R NO 5 2 1/2IN (American Academy of Pediatric Dentistry), 8350-5 2.50IN (William E Williams Valve Corp), 8350 (American Academy of Pediatric Dentistry).

What NSN replaces 4820-01-189-4705?

There are 12 known substitutes for 4820-01-189-4705: 5120-00-089-0485, 3110-00-155-6722, 3010-00-293-4599 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8350-5 2.50IN?

Key specifications for 8350-5 2.50IN: Material: STEEL CORROSION RESISTING; Valve Model Number for Which Designed: 15F8R; Features Provided: RISING STEM; Material Document and Classification: ASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE. 7 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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