PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8059661Pin,piston

Hatch & Kirk, Inc. · NSN 2815-00-278-2143 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-278-2143 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-278-2143. Primary manufacturer part number: 8059661.
Features
  • Pin,piston — FSC 2815
  • Bore Style: STRAIGHT-THRU BORE
  • Material: STEEL
  • Material Document and Classification: MIL-S-890, CLASS B MIL SPEC SINGLE MATERIAL RESPONSE
  • FSC Application Data: ENGINE,DIESEL
  • Casehardening Indicator: CASEHARDENED
  • Bore Diameter: 2.3900 INCHES MINIMUM AND 2.4000 INCHES MAXIMUM IN
  • Outside Diameter: 3.47900 INCHES MINIMUM AND 3.48000 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel construction
General Description

The Pin,piston, cataloged under National Stock Number 2815-00-278-2143, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2815-00-278-2143
Primary Part Number8059661
Item NamePin,piston
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerHatch & Kirk, Inc.
StatusCANCELLED
Bore StyleSTRAIGHT-THRU BORE
MaterialSTEEL
Material Document and ClassificationMIL-S-890, CLASS B MIL SPEC SINGLE MATERIAL RESPONSE
FSC Application DataENGINE,DIESEL
Casehardening IndicatorCASEHARDENED
Bore Diameter2.3900 INCHES MINIMUM AND 2.4000 INCHES MAXIMUM IN
Outside Diameter3.47900 INCHES MINIMUM AND 3.48000 INCHES MAXIMUM IN
Body StyleCHAMFERED ENDS
End Chamfer Angle in Deg25.0
Body Length7.0570 INCHES MINIMUM AND 7.0670 INCHES MAXIMUM IN
Metallic Hardness Rating60.0 MINIMUM ROCKWELL C AND 63.0 MAXIMUM ROCKWELL C
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5950-01-291-770414432 INTERCHANGEABLE
Reactor
Magnespec Inc
Cross-Reference Index
Part NumberManufacturer
8059661 PRIMARY Hatch & Kirk, Inc. (USA)
8075074PC8059661 General Motors Corp Electro-Motive Div (USA)
8059661 General Motors Corp Electro-Motive Div (USA)
8075074PC8059661 General Motors Corp (USA)
8075067PC8059661 General Motors Corp Electro-Motive Div (USA)
8075067PC8059661 General Motors Corp (USA)
8059661 General Motors Corp (USA)
Related Parts
5950-01-291-7704INTERCHANGEABLE
REACTOR
14432

Frequently Asked Questions

What is NSN 2815-00-278-2143?

NSN 2815-00-278-2143 is a Pin,piston, manufactured by Hatch & Kirk, Inc., classified under FSC 2815 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2815-00-278-2143?

NSN 2815-00-278-2143 has 7 cross-referenced part numbers: 8059661 (Hatch & Kirk, Inc.), 8075074PC8059661 (General Motors Corp Electro-Motive Div), 8059661 (General Motors Corp Electro-Motive Div), 8075074PC8059661 (General Motors Corp), 8075067PC8059661 (General Motors Corp Electro-Motive Div) and 2 more.

What NSN replaces 2815-00-278-2143?

There is 1 known substitute for 2815-00-278-2143: 5950-01-291-7704. Verify interchangeability with system specifications before substitution.

What are the specifications of 8059661?

Key specifications for 8059661: Bore Style: STRAIGHT-THRU BORE; Material: STEEL; Material Document and Classification: MIL-S-890, CLASS B MIL SPEC SINGLE MATERIAL RESPONSE; FSC Application Data: ENGINE,DIESEL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2815-00-278-2143 still in active supply?

NSN 2815-00-278-2143 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