PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20379ARing,piston

Brinkley Technology Group Llc Dba Hercules Manufacturing · NSN 2805-00-278-1910 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-278-1910 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-278-1910. Primary manufacturer part number: 20379A.
Features
  • Ring,piston — FSC 2805
  • Ring Style: CONCENTRIC
  • Radial Wall Thickness: 0.2020 INCHES MINIMUM AND 0.2120 INCHES MAXIMUM IN
  • Material: IRON OVERALL
  • Standard Bore Diameter: 4.250 INCHES IN
  • Surface Treatment: LEAD OVERALL
  • Joint Style: VERTICAL JOINT
  • Cross-Sectional Shape Style: INSIDE COUNTERBORE, TWO FILLED GROOVES, STRAIGHT FACE SCRAPER
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-278-1910, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN2805-00-278-1910
Primary Part Number20379A
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerBrinkley Technology Group Llc Dba Hercules Manufacturing
StatusCANCELLED
Ring StyleCONCENTRIC
Radial Wall Thickness0.2020 INCHES MINIMUM AND 0.2120 INCHES MAXIMUM IN
MaterialIRON OVERALL
Standard Bore Diameter4.250 INCHES IN
Surface TreatmentLEAD OVERALL
Joint StyleVERTICAL JOINT
Cross-Sectional Shape StyleINSIDE COUNTERBORE, TWO FILLED GROOVES, STRAIGHT FACE SCRAPER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3130-00-099-091232055 INTERCHANGEABLE
Bearing Unit,ball
Young Touchstone Company Div Young Touchstone
4610-00-412-3816 INTERCHANGEABLE
Feeder,volumetric
5940-00-840-337532058 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
5910-01-092-9392 INTERCHANGEABLE
Capacitor,fixed,metallized,paper
Cross-Reference Index
Part NumberManufacturer
32055 Dana Corp Engine Products Div (USA)
HM20379A Dana Off Highway Products, Llc (USA)
20379A Hercules Engine Co Inc (USA)
20679A Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
HM20379A Clark Material Handling Company (USA)
20379A PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
20679A Hercules Engine Co Inc (USA)
HM20379A Clark Equipment Co (USA)
Related Parts
3130-00-099-0912INTERCHANGEABLE
BEARING UNIT,BALL
32055
4610-00-412-3816INTERCHANGEABLE
FEEDER,VOLUMETRIC
5940-00-840-3375INTERCHANGEABLE
TERMINAL,LUG
32058
5910-01-092-9392INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER

Frequently Asked Questions

What is NSN 2805-00-278-1910?

NSN 2805-00-278-1910 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 2805-00-278-1910?

NSN 2805-00-278-1910 has 8 cross-referenced part numbers: 32055 (Dana Corp Engine Products Div), HM20379A (Dana Off Highway Products, Llc), 20379A (Hercules Engine Co Inc), 20679A (Brinkley Technology Group Llc Dba Hercules Manufacturing), HM20379A (Clark Material Handling Company) and 3 more.

What NSN replaces 2805-00-278-1910?

There are 4 known substitutes for 2805-00-278-1910: 3130-00-099-0912, 4610-00-412-3816, 5940-00-840-3375 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20379A?

Key specifications for 20379A: Ring Style: CONCENTRIC; Radial Wall Thickness: 0.2020 INCHES MINIMUM AND 0.2120 INCHES MAXIMUM IN; Material: IRON OVERALL; Standard Bore Diameter: 4.250 INCHES IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-278-1910 still in active supply?

NSN 2805-00-278-1910 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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