PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AR06070Piston,internal Combustion Engin

Cummins Inc. · NSN 2815-00-532-3822 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-532-3822 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-532-3822. Primary manufacturer part number: AR06070.
Features
  • Piston,internal Combustion Engin — FSC 2815
  • Diameter: 5.125 INCHES NOMINAL IN
  • Ring Groove Width: 0.0760 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM SECOND RING IN
  • Finished Size Designation: STANDARD
  • Ring Groove Diameter: 4.640 INCHES NOMINAL SECOND RING IN
  • Ring Groove Diameter: 4.600 INCHES NOMINAL FOURTH RING IN
  • Pin Hole Bushing: INCLUDED
  • Carbon Groove: INCLUDED
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-532-3822, 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 28 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
NSN2815-00-532-3822
Primary Part NumberAR06070
Item NamePiston,internal Combustion Engin
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Diameter5.125 INCHES NOMINAL IN
Ring Groove Width0.0760 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM SECOND RING IN
Finished Size DesignationSTANDARD
Ring Groove Diameter4.640 INCHES NOMINAL SECOND RING IN
Ring Groove Diameter4.600 INCHES NOMINAL FOURTH RING IN
Pin Hole BushingINCLUDED
Carbon GrooveINCLUDED
Oil GrooveNOT INCLUDED
MaterialALUMINUM ALLOY
Pin Type for Which DesignedFLOATING
Groove Taper Angle10 DEGREES
Distance From Pin Hole Center to Extreme Top3.875 INCHES NOMINAL IN
Ring Groove Width0.1800 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM FOURTH RING IN
Skirt TypeSOLID
Ring Groove Quantity4
Ring Groove Diameter4.640 INCHES NOMINAL THIRD RING IN
Oil Passage TypeHOLE LOCATION NOT OTHERWISE SPECIFIED
Retaining Ring GrooveINCLUDED
PinINCLUDED
Head StyleCONCAVE
Distance Between Pin Bosses2.462 INCHES NOMINAL IN
Ring Groove Width0.0760 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM FIRST RING IN
Surface FinishFINISHED
Pinhole Diameter2.0000 INCHES NOMINAL IN
RingINCLUDED
Ring Groove Width0.0760 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM THIRD RING IN
Ring Groove Diameter4.640 INCHES NOMINAL FIRST RING IN
Skirt Bottom Cutaway FeatureNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5330-00-128-1254A907X44 INTERCHANGEABLE
Seal,plain Encased
David Brown Hydraulics Inc Dba Hydreco
4930-00-857-8585113440 INTERCHANGEABLE
Fuel Servicing Unit,aircraft,tra
Air Logistics Corporation Dba Air Logistics Corp
5895-00-908-4404 INTERCHANGEABLE
Decoder Subassembly
6240-01-238-5374CL342 INTERCHANGEABLE
Lamp,incandescent
Carley Dba Carley Lamps
Cross-Reference Index
Part NumberManufacturer
BM32380 Cummins Inc. (USA)
BM38620 Cummins Inc. (USA)
113440 La Gary Co (USA)
113440 Cummins Inc. (USA)
103900 Cummins Inc. (USA)
AR06070 PRIMARY Cummins Inc. (USA)
Related Parts
5330-00-128-1254INTERCHANGEABLE
SEAL,PLAIN ENCASED
A907X44
4930-00-857-8585INTERCHANGEABLE
FUEL SERVICING UNIT,AIRCRAFT,TRA
113440
5895-00-908-4404INTERCHANGEABLE
DECODER SUBASSEMBLY
6240-01-238-5374INTERCHANGEABLE
LAMP,INCANDESCENT
CL342

Frequently Asked Questions

What is NSN 2815-00-532-3822?

NSN 2815-00-532-3822 is a Piston,internal Combustion Engin, manufactured by Cummins Inc., classified under FSC 2815 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2815-00-532-3822?

NSN 2815-00-532-3822 has 6 cross-referenced part numbers: BM32380 (Cummins Inc.), BM38620 (Cummins Inc.), 113440 (La Gary Co), 113440 (Cummins Inc.), 103900 (Cummins Inc.) and 1 more.

What NSN replaces 2815-00-532-3822?

There are 4 known substitutes for 2815-00-532-3822: 5330-00-128-1254, 4930-00-857-8585, 5895-00-908-4404 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AR06070?

Key specifications for AR06070: Diameter: 5.125 INCHES NOMINAL IN; Ring Groove Width: 0.0760 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM SECOND RING IN; Finished Size Designation: STANDARD; Weight: 96.0 OUNCES OZ. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2815-00-532-3822 still in active supply?

NSN 2815-00-532-3822 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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