PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

68569Valve,poppet,engine

Cummins Inc. · NSN 2815-00-364-5098 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-364-5098 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-364-5098. Primary manufacturer part number: 68569.
Features
  • Valve,poppet,engine — FSC 2815
  • Neck Radius: 0.5500 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN
  • Stem Length: 5.9280 INCHES MINIMUM AND 6.0068 INCHES MAXIMUM IN
  • Chamfer Angle in Deg: 60.0
  • Metallic Hardness Rating and Location: 40.0 ROCKWELL C MINIMUM STEM
  • FSC Application Data: DIESEL ENGINE
  • Metallic Hardness Rating and Location: 40.0 ROCKWELL C MINIMUM HEAD
  • Head Height: 0.1490 INCHES MINIMUM AND 0.1640 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 2815-00-364-5098, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2815-00-364-5098
Primary Part Number68569
Item NameValve,poppet,engine
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Neck Radius0.5500 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN
Stem Length5.9280 INCHES MINIMUM AND 6.0068 INCHES MAXIMUM IN
Chamfer Angle in Deg60.0
Metallic Hardness Rating and Location40.0 ROCKWELL C MINIMUM STEM
FSC Application DataDIESEL ENGINE
Metallic Hardness Rating and Location40.0 ROCKWELL C MINIMUM HEAD
Head Height0.1490 INCHES MINIMUM AND 0.1640 INCHES MAXIMUM IN
Distance From First Groove to Stem End0.2498 INCHES NOMINAL IN
Carbon Relief GrooveNOT INCLUDED
Metallic Hardness Rating and Location50.0 ROCKWELL C MAXIMUM STEM
First Groove Width0.0625 INCHES NOMINAL IN
Distance From Second Groove to Stem End0.4926 INCHES MINIMUM AND 0.5126 INCHES MAXIMUM IN
Chamfer Length0.0200 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM IN
Second Groove Width0.0625 INCHES NOMINAL IN
Head StyleFLAT
Outside Diameter1.5250 INCHES MINIMUM AND 1.5350 INCHES MAXIMUM IN
Metallic Hardness Rating and Location52.0 ROCKWELL C MINIMUM TIP
Stem StyleDOUBLE GROOVED
Second Groove Diameter0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM IN
Seat Angle in Deg30.0
Metallic Hardness Rating and Location50.0 ROCKWELL C MAXIMUM HEAD
Stem Diameter0.4020 INCHES MINIMUM AND 0.4030 INCHES MAXIMUM IN
First Groove Diameter0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3040-00-406-484460476-1 INTERCHANGEABLE
Shaft,shouldered
L3harris Technologies, Inc.
5360-00-494-5347 INTERCHANGEABLE
Spring,helical,compression
5360-00-534-2282 INTERCHANGEABLE
Spring
9540-00-541-7431 INTERCHANGEABLE
Beam,structural
6105-01-060-699268569 INTERCHANGEABLE
Motor,alternating Current
Hdt Expeditionary Systems Inc
5999-01-170-6058G300334S2 INTERCHANGEABLE
Delay Line
L3harris Technologies, Inc Div Space & Airborne Systems
5996-01-260-1502SA82-0289 INTERCHANGEABLE
Amplifier,radio Frequency
Agilent Technologies Inc. Div Semiconductor Products Group Business Center
4730-01-733-4553A40 INTERCHANGEABLE
Sleeve,flared,tube Fitting
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
68569 PRIMARY Cummins Inc. (USA)
S1639 Eaton Corp Dba Eaton Aerospace Jackson (USA)
68569 Taylor Machine Works Inc (USA)
AS1654 Eaton Corp Dba Eaton Aerospace Jackson (USA)
I-605 Gould Inc Industrial Marketing Div (USA)
A60476 Cummins Inc. (USA)
V1993 PRIMARY Eaton Corp Dba Eaton Aerospace Jackson (USA)
60476 Cummins Inc. (USA)
Related Parts
3040-00-406-4844INTERCHANGEABLE
SHAFT,SHOULDERED
60476-1
5360-00-494-5347INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5360-00-534-2282INTERCHANGEABLE
SPRING
9540-00-541-7431INTERCHANGEABLE
BEAM,STRUCTURAL
6105-01-060-6992INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
68569
5999-01-170-6058INTERCHANGEABLE
DELAY LINE
G300334S2
5996-01-260-1502INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
SA82-0289
4730-01-733-4553INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
A40

Frequently Asked Questions

What is NSN 2815-00-364-5098?

NSN 2815-00-364-5098 is a Valve,poppet,engine, manufactured by Cummins Inc., classified under FSC 2815 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2815-00-364-5098?

NSN 2815-00-364-5098 has 8 cross-referenced part numbers: 68569 (Cummins Inc.), S1639 (Eaton Corp Dba Eaton Aerospace Jackson), 68569 (Taylor Machine Works Inc), AS1654 (Eaton Corp Dba Eaton Aerospace Jackson), I-605 (Gould Inc Industrial Marketing Div) and 3 more.

What NSN replaces 2815-00-364-5098?

There are 8 known substitutes for 2815-00-364-5098: 3040-00-406-4844, 5360-00-494-5347, 5360-00-534-2282 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 68569?

Key specifications for 68569: Neck Radius: 0.5500 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN; Stem Length: 5.9280 INCHES MINIMUM AND 6.0068 INCHES MAXIMUM IN; Chamfer Angle in Deg: 60.0; Metallic Hardness Rating and Location: 40.0 ROCKWELL C MINIMUM STEM. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2815-00-364-5098 still in active supply?

NSN 2815-00-364-5098 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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