PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

290980Pin,piston

Briggs and Stratton Corp · NSN 2805-00-271-9561 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-271-9561 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-271-9561. Primary manufacturer part number: 290980.
Features
  • Pin,piston — FSC 2805
  • Body Style: CHAMFERED ENDS
  • Bore Diameter: 0.3125 INCHES NOMINAL IN
  • End Chamfer Angle in Deg: 15.0
  • FSC Application Data: ENGINE,GASOLINE,NONAIRCRAFT
  • Material: STEEL COMP 1022
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1022 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1022 ASSN STD SINGLE MATERIAL RESPONSE
  • Outside Diameter: 0.49000 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Comp 1022 construction
General Description

The Pin,piston, cataloged under National Stock Number 2805-00-271-9561, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Briggs and Stratton Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN2805-00-271-9561
Primary Part Number290980
Item NamePin,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerBriggs and Stratton Corp
StatusCANCELLED
Body StyleCHAMFERED ENDS
Bore Diameter0.3125 INCHES NOMINAL IN
End Chamfer Angle in Deg15.0
FSC Application DataENGINE,GASOLINE,NONAIRCRAFT
MaterialSTEEL COMP 1022
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1022 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1022 ASSN STD SINGLE MATERIAL RESPONSE
Outside Diameter0.49000 INCHES NOMINAL IN
Casehardening IndicatorCASEHARDENED
Body Length1.6560 INCHES NOMINAL IN
Bore StyleSOLID CENTER
Metallic Hardness Rating59.5 NOMINAL ROCKWELL C
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5330-00-215-51217351163 INTERCHANGEABLE
Gasket
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
290980 PRIMARY Briggs and Stratton Corp (USA)
63773 PRIMARY Briggs and Stratton Corp (USA)
Related Parts
5330-00-215-5121INTERCHANGEABLE
GASKET
7351163

Frequently Asked Questions

What is NSN 2805-00-271-9561?

NSN 2805-00-271-9561 is a Pin,piston, manufactured by Briggs and Stratton Corp, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-271-9561?

NSN 2805-00-271-9561 has 2 cross-referenced part numbers: 290980 (Briggs and Stratton Corp), 63773 (Briggs and Stratton Corp).

What NSN replaces 2805-00-271-9561?

There is 1 known substitute for 2805-00-271-9561: 5330-00-215-5121. Verify interchangeability with system specifications before substitution.

What are the specifications of 290980?

Key specifications for 290980: Body Style: CHAMFERED ENDS; Bore Diameter: 0.3125 INCHES NOMINAL IN; End Chamfer Angle in Deg: 15.0; FSC Application Data: ENGINE,GASOLINE,NONAIRCRAFT. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-271-9561 still in active supply?

NSN 2805-00-271-9561 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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