PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A268891Piston,internal Combustion Engin

Dresser Industries Inc Waukesha Engine Div · NSN 2815-00-453-9067 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-453-9067 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-453-9067. Primary manufacturer part number: A268891.
Features
  • Piston,internal Combustion Engin — FSC 2815
  • Surface Finish: FINISHED
  • Ring Groove Diameter: 3.602 INCHES MINIMUM AND 3.612 INCHES MAXIMUM SECOND RING IN
  • Diameter: 3.997 INCHES NOMINAL IN
  • Ring Groove Width: 0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM FOURTH RING IN
  • Ring Groove Diameter: 3.602 INCHES MINIMUM AND 3.612 INCHES MAXIMUM THIRD RING IN
  • Ring Groove Width: 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FIFTH RING IN
  • Ring Groove Width: 0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM SECOND RING IN
Applications
  • Applications requiring Iron Cast construction
General Description

The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-453-9067, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Dresser Industries Inc Waukesha Engine Div. Government technical data includes 30 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2815-00-453-9067
Primary Part NumberA268891
Item NamePiston,internal Combustion Engin
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerDresser Industries Inc Waukesha Engine Div
StatusACTIVE
Surface FinishFINISHED
Ring Groove Diameter3.602 INCHES MINIMUM AND 3.612 INCHES MAXIMUM SECOND RING IN
Diameter3.997 INCHES NOMINAL IN
Ring Groove Width0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM FOURTH RING IN
Ring Groove Diameter3.602 INCHES MINIMUM AND 3.612 INCHES MAXIMUM THIRD RING IN
Ring Groove Width0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FIFTH RING IN
Ring Groove Width0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM SECOND RING IN
Ring Groove Width0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM THIRD RING IN
Ring Groove Width0.1480 INCHES NOMINAL FIRST RING IN
Ring Groove Width0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM SIXTH RING IN
Ring Groove Diameter3.602 INCHES MINIMUM AND 3.612 INCHES MAXIMUM FOURTH RING IN
MaterialIRON CAST
Groove Taper Angle7 DEG 30 MIN NO. 1 GROOVE
Oil Passage TypeHOLE SIXTH RING
Head StyleFLAT
Finished Size DesignationSTANDARD
RingINCLUDED
Ring Groove Position and QuantityNUMBER 1,NUMBER 2,NUMBER 3,NUMBER 4,NUMBER 5,NUMBER 6 PISTON ALL RINGS
PinINCLUDED
Distance Between Pin Bosses1.488 INCHES MINIMUM AND 1.498 INCHES MAXIMUM IN
Distance From Pin Hole Center to Extreme Top3.302 INCHES NOMINAL IN
Skirt TypeSOLID
Ring Groove Diameter3.564 INCHES NOMINAL SIXTH RING IN
Pin Hole BushingINCLUDED
Retaining Ring GrooveNOT INCLUDED
Carbon GrooveINCLUDED
Ring Groove Diameter3.564 INCHES NOMINAL FIFTH RING IN
Ring Groove Diameter3.602 INCHES MINIMUM AND 3.612 INCHES MAXIMUM FIRST RING IN
Unable to DecodeUNABLE TO DECODE
Pinhole Diameter1.6262 INCHES MINIMUM AND 1.6268 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-286-029072030 INTERCHANGEABLE
Gasket
Stewart-Warner Corporation
Cross-Reference Index
Part NumberManufacturer
A268891 Dresser Industries Inc Waukesha Engine Div (USA)
A0301205 Dresser Industries Inc Waukesha Engine Div (USA)
L268891 Dresser Industries Inc Waukesha Engine Div (USA)
A0301205 Engine and Equipment Products Co (USA)
Related Parts
5330-00-286-0290INTERCHANGEABLE
GASKET
72030

Frequently Asked Questions

What is NSN 2815-00-453-9067?

NSN 2815-00-453-9067 is a Piston,internal Combustion Engin, manufactured by Dresser Industries Inc Waukesha Engine Div, classified under FSC 2815 (No Item Name Available). Status: active.

What are the part numbers for NSN 2815-00-453-9067?

NSN 2815-00-453-9067 has 4 cross-referenced part numbers: A268891 (Dresser Industries Inc Waukesha Engine Div), A0301205 (Dresser Industries Inc Waukesha Engine Div), L268891 (Dresser Industries Inc Waukesha Engine Div), A0301205 (Engine and Equipment Products Co).

What NSN replaces 2815-00-453-9067?

There is 1 known substitute for 2815-00-453-9067: 5330-00-286-0290. Verify interchangeability with system specifications before substitution.

What are the specifications of A268891?

Key specifications for A268891: Surface Finish: FINISHED; Ring Groove Diameter: 3.602 INCHES MINIMUM AND 3.612 INCHES MAXIMUM SECOND RING IN; Diameter: 3.997 INCHES NOMINAL IN; Ring Groove Width: 0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM FOURTH RING IN. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com