PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3901A010Ring,piston

Brinkley Technology Group Llc Dba Hercules Manufacturing · NSN 2805-00-406-3003 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-406-3003 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-406-3003. Primary manufacturer part number: 3901A010.
Features
  • Ring,piston — FSC 2805
  • Material: IRON OVERALL
  • Oil Passage Type and Quantity: 10 HOLE HORIZONTALLY THROUGH RING
  • Oil Passage Type and Quantity: 1 GROOVE OUTSIDE PERIPHERY
  • Radial Wall Thickness: 0.1200 INCHES NOMINAL IN
  • Ring Style: CONCENTRIC
  • Cross-Sectional Shape Style: STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
  • Standard Bore Diameter: 2.625 INCHES IN
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-406-3003, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 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: Cancelled.

Technical Specifications
ParameterValue
NSN2805-00-406-3003
Primary Part Number3901A010
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerBrinkley Technology Group Llc Dba Hercules Manufacturing
StatusCANCELLED
MaterialIRON OVERALL
Oil Passage Type and Quantity10 HOLE HORIZONTALLY THROUGH RING
Oil Passage Type and Quantity1 GROOVE OUTSIDE PERIPHERY
Radial Wall Thickness0.1200 INCHES NOMINAL IN
Ring StyleCONCENTRIC
Cross-Sectional Shape StyleSTRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
Standard Bore Diameter2.625 INCHES IN
Bore Diameter Oversize0.010 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4940-01-336-4805 INTERCHANGEABLE
Cleaning Gun,pneumatic
Cross-Reference Index
Part NumberManufacturer
3901A010 Hercules Engine Co Inc (USA)
3901A0100S Hercules Engine Co Inc (USA)
3901A Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
3901A0100S Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
3901A010 PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
3901A Hercules Engine Co Inc (USA)
3901A01005 Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
3901A01005 Hercules Engine Co Inc (USA)
Related Parts
4940-01-336-4805INTERCHANGEABLE
CLEANING GUN,PNEUMATIC

Frequently Asked Questions

What is NSN 2805-00-406-3003?

NSN 2805-00-406-3003 is a Ring,piston, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-406-3003?

NSN 2805-00-406-3003 has 8 cross-referenced part numbers: 3901A010 (Hercules Engine Co Inc), 3901A0100S (Hercules Engine Co Inc), 3901A (Brinkley Technology Group Llc Dba Hercules Manufacturing), 3901A0100S (Brinkley Technology Group Llc Dba Hercules Manufacturing), 3901A010 (Brinkley Technology Group Llc Dba Hercules Manufacturing) and 3 more.

What NSN replaces 2805-00-406-3003?

There is 1 known substitute for 2805-00-406-3003: 4940-01-336-4805. Verify interchangeability with system specifications before substitution.

What are the specifications of 3901A010?

Key specifications for 3901A010: Material: IRON OVERALL; Oil Passage Type and Quantity: 10 HOLE HORIZONTALLY THROUGH RING; Oil Passage Type and Quantity: 1 GROOVE OUTSIDE PERIPHERY; Radial Wall Thickness: 0.1200 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-406-3003 still in active supply?

NSN 2805-00-406-3003 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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