PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-225Seat,valve

Hardie-Tynes Co., Inc. · NSN 4810-00-168-8748 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-168-8748 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-168-8748. Primary manufacturer part number: 30-225.
Features
  • Seat,valve — FSC 4810
  • Under Flange Height: 0.266 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Seating Surface Shape: FLAT
  • Style Designator: THREADED FLANGED
  • Thread Quantity Per Inch: 20 SINGLE THREADED PORTION
  • Thread Series Designator: UN SINGLE THREADED PORTION
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 4810-00-168-8748, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-00-168-8748
Primary Part Number30-225
Item NameSeat,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerHardie-Tynes Co., Inc.
StatusACTIVE
Under Flange Height0.266 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Thread Class2A SINGLE THREADED PORTION A
Seating Surface ShapeFLAT
Style DesignatorTHREADED FLANGED
Thread Quantity Per Inch20 SINGLE THREADED PORTION
Thread Series DesignatorUN SINGLE THREADED PORTION
Flange Seat to Disk End Height0.328 INCHES NOMINAL IN
Body Inside Diameter0.937 INCHES NOMINAL IN
Nominal Thread Size1.562 INCHES SINGLE THREADED PORTION IN
MaterialSTEEL CORROSION RESISTING OVERALL
Flange Diameter1.875 INCHES NOMINAL IN
Thread Length0.188 INCHES NOMINAL SINGLE THREADED PORTION IN
Seal Accommodation TypeRECESSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6650-00-105-806230225 INTERCHANGEABLE
Microscope Pocket
Edmund Optics, Inc
3110-00-142-438609195 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
2945-00-782-797530225 INTERCHANGEABLE
Filter,fluid
Genesis Filtration Inc
4820-00-942-21403022-5 INTERCHANGEABLE
Disk,valve
Parker-Hannifin Corporation Dba Pneutronics
5365-01-030-445130225 INTERCHANGEABLE
Shim
Safe Flight Instrument, Llc
6150-01-242-4463 INTERCHANGEABLE
Cable Assembly,power,electrical
5970-01-406-3586 INTERCHANGEABLE
Insulation Sleeving,electrical
3040-01-419-056030225 INTERCHANGEABLE
Shaft,shouldered
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
6530-01-446-3982302.25 INTERCHANGEABLE
Tray,sterilization
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5985-01-546-237730225 INTERCHANGEABLE
Dummy Load,electrical
General Dynamics Information Technology, Inc.
Cross-Reference Index
Part NumberManufacturer
30-225 Hardie-Tynes Co., Inc. (USA)
150-570GPC225 Hardie-Tynes Co., Inc. (USA)
150-589PC225 Hardie-Tynes Co., Inc. (USA)
150-570YPC225 Hardie-Tynes Co., Inc. (USA)
150-570HPC225 Hardie-Tynes Co., Inc. (USA)
150-570PC225 Hardie-Tynes Co., Inc. (USA)
150-570KPC225 Hardie-Tynes Co., Inc. (USA)
Related Parts
6650-00-105-8062INTERCHANGEABLE
MICROSCOPE POCKET
30225
3110-00-142-4386INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
09195
2945-00-782-7975INTERCHANGEABLE
FILTER,FLUID
30225
4820-00-942-2140INTERCHANGEABLE
DISK,VALVE
3022-5
5365-01-030-4451INTERCHANGEABLE
SHIM
30225
6150-01-242-4463INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
5970-01-406-3586INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
3040-01-419-0560INTERCHANGEABLE
SHAFT,SHOULDERED
30225
6530-01-446-3982INTERCHANGEABLE
TRAY,STERILIZATION
302.25
5985-01-546-2377INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
30225
6510-01-623-9442INTERCHANGEABLE
DRESSING,HEMOSTATIC
30-223

Frequently Asked Questions

What is NSN 4810-00-168-8748?

NSN 4810-00-168-8748 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 4810-00-168-8748?

NSN 4810-00-168-8748 has 7 cross-referenced part numbers: 30-225 (Hardie-Tynes Co., Inc.), 150-570GPC225 (Hardie-Tynes Co., Inc.), 150-589PC225 (Hardie-Tynes Co., Inc.), 150-570YPC225 (Hardie-Tynes Co., Inc.), 150-570HPC225 (Hardie-Tynes Co., Inc.) and 2 more.

What NSN replaces 4810-00-168-8748?

There are 11 known substitutes for 4810-00-168-8748: 6650-00-105-8062, 3110-00-142-4386, 2945-00-782-7975 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-225?

Key specifications for 30-225: Under Flange Height: 0.266 INCHES NOMINAL IN; Surface Treatment: PASSIVATE OVERALL; Special Features: WITH 8 THROUGH HOLES,0.250 IN. ID,EQUALLY SPACED ON 0.781 IN. B.C. DIA IN; Thread Class: 2A SINGLE THREADED PORTION A. 15 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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