PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32331Valve,poppet,engine

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 2810-00-118-6471 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-118-6471 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-118-6471. Primary manufacturer part number: 32331.
Features
  • Valve,poppet,engine — FSC 2810
  • Carbon Relief Groove: NOT INCLUDED
  • Stem Diameter: 0.5585 INCHES MINIMUM AND 0.5595 INCHES MAXIMUM IN
  • FSC Application Data: ACFT ENG R2000
  • Groove Diameter: 0.4650 INCHES NOMINAL IN
  • Stem Style: GROOVED
  • Seat Angle in Deg: 45.0
  • Chamfer Length: 0.0100 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM 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 2810-00-118-6471, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2810-00-118-6471
Primary Part Number32331
Item NameValve,poppet,engine
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
Carbon Relief GrooveNOT INCLUDED
Stem Diameter0.5585 INCHES MINIMUM AND 0.5595 INCHES MAXIMUM IN
FSC Application DataACFT ENG R2000
Groove Diameter0.4650 INCHES NOMINAL IN
Stem StyleGROOVED
Seat Angle in Deg45.0
Chamfer Length0.0100 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM IN
Chamfer Angle in Deg45.0
Outside Diameter2.9630 INCHES MINIMUM AND 2.9730 INCHES MAXIMUM IN
Head StyleCONCAVE
Distance From Groove to Stem End0.2080 INCHES MINIMUM AND 0.2140 INCHES MAXIMUM IN
Stem Length5.6180 INCHES NOMINAL IN
Groove Width0.1875 INCHES NOMINAL IN
Head Height0.2500 INCHES NOMINAL IN
Neck Radius0.8125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3455-00-224-365809310 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5945-00-682-0436657910 INTERCHANGEABLE
Relay,electromagnetic
Cae Usa Inc.
5305-01-295-868032331 INTERCHANGEABLE
Screw Mounting
Mac Valves Inc
5360-01-389-96873233-1 INTERCHANGEABLE
Spring,helical,compression
Loral Corp
Cross-Reference Index
Part NumberManufacturer
32331 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
32331 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
3455-00-224-3658INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
09310
5945-00-682-0436INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
657910
5305-01-295-8680INTERCHANGEABLE
SCREW MOUNTING
32331
5360-01-389-9687INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3233-1

Frequently Asked Questions

What is NSN 2810-00-118-6471?

NSN 2810-00-118-6471 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 2810-00-118-6471?

NSN 2810-00-118-6471 has 2 cross-referenced part numbers: 32331 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 32331 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 2810-00-118-6471?

There are 4 known substitutes for 2810-00-118-6471: 3455-00-224-3658, 5945-00-682-0436, 5305-01-295-8680 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 32331?

Key specifications for 32331: Carbon Relief Groove: NOT INCLUDED; Stem Diameter: 0.5585 INCHES MINIMUM AND 0.5595 INCHES MAXIMUM IN; FSC Application Data: ACFT ENG R2000; Groove Diameter: 0.4650 INCHES NOMINAL IN. 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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