PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221002Valve,poppet,engine

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 2810-00-294-3056 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-294-3056 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-294-3056. Primary manufacturer part number: 221002.
Features
  • Valve,poppet,engine — FSC 2810
  • Distance From Groove to Stem End: 0.2230 INCHES MINIMUM AND 0.2330 INCHES MAXIMUM IN
  • Head Style: MUSHROOM
  • Stem Diameter: 0.6815 INCHES MINIMUM AND 0.6825 INCHES MAXIMUM IN
  • Outside Diameter: 2.5680 INCHES MINIMUM AND 2.5980 INCHES MAXIMUM IN
  • Seat Angle in Deg: 45.0
  • Stem Style: GROOVED
  • FSC Application Data: ACFT ENG R2800
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 2810-00-294-3056, 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 6 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: Cancelled.

Technical Specifications
ParameterValue
NSN2810-00-294-3056
Primary Part Number221002
Item NameValve,poppet,engine
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusCANCELLED
Distance From Groove to Stem End0.2230 INCHES MINIMUM AND 0.2330 INCHES MAXIMUM IN
Head StyleMUSHROOM
Stem Diameter0.6815 INCHES MINIMUM AND 0.6825 INCHES MAXIMUM IN
Outside Diameter2.5680 INCHES MINIMUM AND 2.5980 INCHES MAXIMUM IN
Seat Angle in Deg45.0
Stem StyleGROOVED
FSC Application DataACFT ENG R2800
MaterialSTEEL OVERALL
Groove Width0.1865 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
Stem Length5.6070 INCHES MINIMUM AND 5.6370 INCHES MAXIMUM IN
Groove Diameter0.5660 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN
Neck Radius0.8750 INCHES NOMINAL IN
Head Height0.4860 INCHES MINIMUM AND 0.5160 INCHES MAXIMUM IN
Carbon Relief GrooveNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3040-01-044-5312 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
3020-01-187-2361221002-1 INTERCHANGEABLE
Gear,bevel
Bowmar Llc Dba Bowmar Instrument Corp
5130-01-335-92142350-01 INTERCHANGEABLE
Nut Runner and Screwdriver,elect
Skil Corp
6140-01-532-229022-1002 INTERCHANGEABLE
Battery Set
Xenonics, Inc.
Cross-Reference Index
Part NumberManufacturer
190158 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
221002 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
190158 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
168735 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
221002 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
168735 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
3040-01-044-5312INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
3020-01-187-2361INTERCHANGEABLE
GEAR,BEVEL
221002-1
5130-01-335-9214INTERCHANGEABLE
NUT RUNNER AND SCREWDRIVER,ELECT
2350-01
6140-01-532-2290INTERCHANGEABLE
BATTERY SET
22-1002

Frequently Asked Questions

What is NSN 2810-00-294-3056?

NSN 2810-00-294-3056 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: cancelled.

What are the part numbers for NSN 2810-00-294-3056?

NSN 2810-00-294-3056 has 6 cross-referenced part numbers: 190158 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 221002 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 190158 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 168735 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 221002 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 1 more.

What NSN replaces 2810-00-294-3056?

There are 4 known substitutes for 2810-00-294-3056: 3040-01-044-5312, 3020-01-187-2361, 5130-01-335-9214 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 221002?

Key specifications for 221002: Distance From Groove to Stem End: 0.2230 INCHES MINIMUM AND 0.2330 INCHES MAXIMUM IN; Head Style: MUSHROOM; Stem Diameter: 0.6815 INCHES MINIMUM AND 0.6825 INCHES MAXIMUM IN; Outside Diameter: 2.5680 INCHES MINIMUM AND 2.5980 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2810-00-294-3056 still in active supply?

NSN 2810-00-294-3056 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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