PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

250566R1Valve,poppet,engine

Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ · NSN 2815-00-355-3228 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-355-3228 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-355-3228. Primary manufacturer part number: 250566R1.
Features
  • Valve,poppet,engine — FSC 2815
  • Groove Width: 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN
  • Stem Length: 5.7045 INCHES MINIMUM AND 5.7195 INCHES MAXIMUM IN
  • Unable to Decode: UNABLE TO DECODE
  • Head Style: FLAT
  • Seat Angle in Deg: 45.0
  • FSC Application Data: DIESEL ENGINE
  • Outside Diameter: 1.4000 INCHES MINIMUM AND 1.4100 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 2815-00-355-3228, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2815-00-355-3228
Primary Part Number250566R1
Item NameValve,poppet,engine
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerNavistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
StatusCANCELLED
Groove Width0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN
Stem Length5.7045 INCHES MINIMUM AND 5.7195 INCHES MAXIMUM IN
Unable to DecodeUNABLE TO DECODE
Head StyleFLAT
Seat Angle in Deg45.0
FSC Application DataDIESEL ENGINE
Outside Diameter1.4000 INCHES MINIMUM AND 1.4100 INCHES MAXIMUM IN
Neck Radius0.4375 INCHES NOMINAL IN
Chamfer Angle in Deg30.0
Head Height0.1220 INCHES MINIMUM AND 0.1320 INCHES MAXIMUM IN
Stem StyleGROOVED
Chamfer Length0.0312 INCHES NOMINAL IN
Carbon Relief GrooveNOT INCLUDED
Distance From Groove to Stem End0.2250 INCHES MINIMUM AND 0.2350 INCHES MAXIMUM IN
Groove Diameter0.3290 INCHES MINIMUM AND 0.3350 INCHES MAXIMUM IN
Stem Diameter0.3710 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5962-00-055-5322SN15962-1 INTERCHANGEABLE
Microcircuit,digital
Texas Instruments Incorporated
5330-00-353-9154S1962 INTERCHANGEABLE
Packing,preformed
Cummins Inc.
6635-00-976-346323-7452 INTERCHANGEABLE
Test Set,soil
Ele International, Llc Dba Soiltest Products
6105-01-050-7793 INTERCHANGEABLE
Motor,alternating Current
5930-01-146-0392S196-2 INTERCHANGEABLE
Switch,push
Cae Usa Inc.
5975-01-329-1505S1962 INTERCHANGEABLE
Plate,wall,electrical
Cooper Wiring Devices Inc.
Cross-Reference Index
Part NumberManufacturer
250566R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
250566R1 Komatsu America Corp. (USA)
250566R1 Navistar International Corporation Dba Navistar (USA)
S1962 Eaton Corp Dba Eaton Aerospace Jackson (USA)
250566R1 Komatsu American Intl Co (USA)
Related Parts
5962-00-055-5322INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SN15962-1
5330-00-353-9154INTERCHANGEABLE
PACKING,PREFORMED
S1962
6635-00-976-3463INTERCHANGEABLE
TEST SET,SOIL
23-7452
6105-01-050-7793INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5930-01-146-0392INTERCHANGEABLE
SWITCH,PUSH
S196-2
5975-01-329-1505INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
S1962

Frequently Asked Questions

What is NSN 2815-00-355-3228?

NSN 2815-00-355-3228 is a Valve,poppet,engine, manufactured by Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/, classified under FSC 2815 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2815-00-355-3228?

NSN 2815-00-355-3228 has 5 cross-referenced part numbers: 250566R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 250566R1 (Komatsu America Corp.), 250566R1 (Navistar International Corporation Dba Navistar), S1962 (Eaton Corp Dba Eaton Aerospace Jackson), 250566R1 (Komatsu American Intl Co).

What NSN replaces 2815-00-355-3228?

There are 6 known substitutes for 2815-00-355-3228: 5962-00-055-5322, 5330-00-353-9154, 6635-00-976-3463 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 250566R1?

Key specifications for 250566R1: Groove Width: 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN; Stem Length: 5.7045 INCHES MINIMUM AND 5.7195 INCHES MAXIMUM IN; Unable to Decode: UNABLE TO DECODE; Head Style: FLAT. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2815-00-355-3228 still in active supply?

NSN 2815-00-355-3228 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.
PartsTable Design LLC · partstable.com