PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

150-409YPC206Seat,valve

Hardie-Tynes Co., Inc. · NSN 4810-00-168-8723 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-168-8723 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-168-8723. Primary manufacturer part number: 150-409YPC206.
Features
  • Seat,valve — FSC 4810
  • Style Designator: PLAIN FLANGED
  • Thread Series Designator: UN SINGLE THREADED PORTION
  • Thread Class: 3B SINGLE THREADED PORTION
  • Body Outside Diameter: 1.365 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 20 SINGLE THREADED PORTION
  • Flange Seat to Disk End Height: 0.781 INCHES NOMINAL IN
  • Flange Diameter: 1.620 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4810-00-168-8723, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hardie-Tynes Co., Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 1 manufacturer, 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
NSN4810-00-168-8723
Primary Part Number150-409YPC206
Item NameSeat,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerHardie-Tynes Co., Inc.
StatusACTIVE
Style DesignatorPLAIN FLANGED
Thread Series DesignatorUN SINGLE THREADED PORTION
Thread Class3B SINGLE THREADED PORTION
Body Outside Diameter1.365 INCHES NOMINAL IN
Thread Quantity Per Inch20 SINGLE THREADED PORTION
Flange Seat to Disk End Height0.781 INCHES NOMINAL IN
Flange Diameter1.620 INCHES NOMINAL IN
Body Inside Diameter1.188 INCHES NOMINAL IN
Thread Length0.281 INCHES NOMINAL SINGLE THREADED PORTION IN
Nominal Thread Size1.437 INCHES SINGLE THREADED PORTION IN
Seating Surface ShapeFLAT
MaterialSTEEL CORROSION RESISTING OVERALL
Under Flange Height0.156 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4720-00-440-207220206 INTERCHANGEABLE
Hose,preformed
Gates Corporation
3110-00-554-5839 INTERCHANGEABLE
Bearing,ball,annular
1650-00-923-6317381M0183P001 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Raytheon Company Dba Raytheon Co
5950-00-967-209220206 INTERCHANGEABLE
Transformer,power
Drs Signal Solutions, Inc.
6760-01-073-32282020-6 INTERCHANGEABLE
Adapter Unit,densi
Gamma Scientific Inc
5961-01-166-3159 INTERCHANGEABLE
Semiconductor Device,diode
4820-01-174-1158 INTERCHANGEABLE
Valve,safety Relief
6515-01-237-8469202.06 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5310-01-270-5463 INTERCHANGEABLE
Nut,plain,single Ball Seat,hexag
5120-01-430-8241 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
150-409YPC206 Hardie-Tynes Co., Inc. (USA)
150-619FPC206 Hardie-Tynes Co., Inc. (USA)
150-619FFPC206 Hardie-Tynes Co., Inc. (USA)
150-409FPC206 Hardie-Tynes Co., Inc. (USA)
150-419FFPC206 Hardie-Tynes Co., Inc. (USA)
20-206 Hardie-Tynes Co., Inc. (USA)
150-419YPC206 Hardie-Tynes Co., Inc. (USA)
150-409FFPC206 Hardie-Tynes Co., Inc. (USA)
150-434YPC206 Hardie-Tynes Co., Inc. (USA)
150-419FPC206 Hardie-Tynes Co., Inc. (USA)
Related Parts
4720-00-440-2072INTERCHANGEABLE
HOSE,PREFORMED
20206
3110-00-554-5839INTERCHANGEABLE
BEARING,BALL,ANNULAR
1650-00-923-6317INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
381M0183P001
5950-00-967-2092INTERCHANGEABLE
TRANSFORMER,POWER
20206
6760-01-073-3228INTERCHANGEABLE
ADAPTER UNIT,DENSI
2020-6
5961-01-166-3159INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4820-01-174-1158INTERCHANGEABLE
VALVE,SAFETY RELIEF
6515-01-237-8469INTERCHANGEABLE
SCREW,BONE
202.06
5310-01-270-5463INTERCHANGEABLE
NUT,PLAIN,SINGLE BALL SEAT,HEXAG
5120-01-430-8241INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
4820-01-494-4920INTERCHANGEABLE
VALVE,SAFETY RELIEF
20206K51M
4820-01-495-5307INTERCHANGEABLE
VALVE,SAFETY RELIEF
20206L51M

Frequently Asked Questions

What is NSN 4810-00-168-8723?

NSN 4810-00-168-8723 is a Seat,valve, manufactured by Hardie-Tynes Co., Inc., classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-00-168-8723?

NSN 4810-00-168-8723 has 10 cross-referenced part numbers: 150-409YPC206 (Hardie-Tynes Co., Inc.), 150-619FPC206 (Hardie-Tynes Co., Inc.), 150-619FFPC206 (Hardie-Tynes Co., Inc.), 150-409FPC206 (Hardie-Tynes Co., Inc.), 150-419FFPC206 (Hardie-Tynes Co., Inc.) and 5 more.

What NSN replaces 4810-00-168-8723?

There are 12 known substitutes for 4810-00-168-8723: 4720-00-440-2072, 3110-00-554-5839, 1650-00-923-6317 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 150-409YPC206?

Key specifications for 150-409YPC206: Style Designator: PLAIN FLANGED; Thread Series Designator: UN SINGLE THREADED PORTION; Thread Class: 3B SINGLE THREADED PORTION; Body Outside Diameter: 1.365 INCHES NOMINAL IN. 13 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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