PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55226Valve,poppet,engine

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 2810-00-118-6472 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-118-6472 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-118-6472. Primary manufacturer part number: 55226.
Features
  • Valve,poppet,engine — FSC 2810
  • Neck Radius: 0.8120 INCHES NOMINAL IN
  • Outside Diameter: 2.4780 INCHES MINIMUM AND 2.4880 INCHES MAXIMUM IN
  • Head Style: MUSHROOM
  • FSC Application Data: ACFT ENG R1820
  • Metallic Hardness Rating and Location: 60.0 ROCKWELL C NOMINAL TIP
  • Groove Width: 0.1875 INCHES NOMINAL IN
  • Stem Length: 5.3850 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical power generation
  • Drive system operation
General Description

The Valve,poppet,engine, cataloged under National Stock Number 2810-00-118-6472, is classified within Federal Supply Class 2810 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2810-00-118-6472
Primary Part Number55226
Item NameValve,poppet,engine
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
Neck Radius0.8120 INCHES NOMINAL IN
Outside Diameter2.4780 INCHES MINIMUM AND 2.4880 INCHES MAXIMUM IN
Head StyleMUSHROOM
FSC Application DataACFT ENG R1820
Metallic Hardness Rating and Location60.0 ROCKWELL C NOMINAL TIP
Groove Width0.1875 INCHES NOMINAL IN
Stem Length5.3850 INCHES NOMINAL IN
Head Height0.5120 INCHES NOMINAL IN
Stem Diameter0.6185 INCHES MINIMUM AND 0.6195 INCHES MAXIMUM IN
Carbon Relief GrooveNOT INCLUDED
Stem StyleGROOVED
Distance From Groove to Stem End0.2180 INCHES NOMINAL IN
Groove Diameter0.5060 INCHES NOMINAL IN
Seat Angle in Deg45.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5945-00-405-1167 INTERCHANGEABLE
Relay,electromagnetic
5330-00-426-444655226 INTERCHANGEABLE
Seal,plain Encased
Altra Industrial Motion Corp.
2805-00-725-3371 INTERCHANGEABLE
Piston,internal Combustion Engin
5920-00-828-28240209.500 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
5935-01-123-7917943949-7 INTERCHANGEABLE
Plate,retaining,electrical Conne
Raytheon Company Dba Raytheon
5985-01-274-41222901446 INTERCHANGEABLE
Waveguide Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6320-01-411-6610 INTERCHANGEABLE
Indicator,angle
6105-01-416-836330740 INTERCHANGEABLE
Motor,alternating Current
Ace Pump Corp
1620-01-446-786630740 INTERCHANGEABLE
Actuator,steering Ratio Changer
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
Cross-Reference Index
Part NumberManufacturer
55226 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
30740 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
30740 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
55226 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
5945-00-405-1167INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5330-00-426-4446INTERCHANGEABLE
SEAL,PLAIN ENCASED
55226
2805-00-725-3371INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
5920-00-828-2824INTERCHANGEABLE
FUSE,CARTRIDGE
0209.500
5935-01-123-7917INTERCHANGEABLE
PLATE,RETAINING,ELECTRICAL CONNE
943949-7
5985-01-274-4122INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
2901446
6320-01-411-6610INTERCHANGEABLE
INDICATOR,ANGLE
6105-01-416-8363INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
30740
1620-01-446-7866INTERCHANGEABLE
ACTUATOR,STEERING RATIO CHANGER
30740

Frequently Asked Questions

What is NSN 2810-00-118-6472?

NSN 2810-00-118-6472 is a Valve,poppet,engine, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 2810 (No Item Name Available). Status: active.

What are the part numbers for NSN 2810-00-118-6472?

NSN 2810-00-118-6472 has 4 cross-referenced part numbers: 55226 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 30740 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 30740 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 55226 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 2810-00-118-6472?

There are 9 known substitutes for 2810-00-118-6472: 5945-00-405-1167, 5330-00-426-4446, 2805-00-725-3371 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55226?

Key specifications for 55226: Neck Radius: 0.8120 INCHES NOMINAL IN; Outside Diameter: 2.4780 INCHES MINIMUM AND 2.4880 INCHES MAXIMUM IN; Head Style: MUSHROOM; FSC Application Data: ACFT ENG R1820. 14 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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