PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

512191Ring,piston

Caterpillar Inc Div Caterpillar Defense · NSN 2805-00-273-0353 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-273-0353 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-273-0353. Primary manufacturer part number: 512191.
Features
  • Ring,piston — FSC 2805
  • 13 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-273-0353, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 13 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,piston
FSC / FSG2805 — No Item Name Available (FSG 28)
ManufacturersSpx Corp (CAGE 53781); Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (CAGE 62265); Mcquay-Norris Inc Oem Div an Skf Industries Co (CAGE 76255); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Brinkley Technology Group Llc Dba Hercules Manufacturing (CAGE 1ML14)
Technical Specifications
ParameterValue
NSN2805-00-273-0353
Primary Part Number512191
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2805-00-278-1883 INTERCHANGEABLE
Ring,piston
5905-00-422-2026 INTERCHANGEABLE
Resistor,variable,wire Wound,non
6910-00-809-6801 INTERCHANGEABLE
Moulage,war Wound
4940-01-598-2192MG10 INTERCHANGEABLE
Cleaning Element,pipeline,fluid
Mandus Group Llc
Cross-Reference Index
Part NumberManufacturer
MG10 Spx Corp (USA)
TF10-18 Spx Corp (USA)
2BN01382 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
R1380F Mcquay-Norris Inc Oem Div an Skf Industries Co
512191 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
42297ASTD PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
42297A Hyster-Yale Group, Inc. (USA)
TF10-18 Bosch Automotive Service Solutions Inc. (USA)
42297ASTD Hercules Engine Co Inc (USA)
L12191 Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co (USA)
667265 Sasco Inc Canadian Div
MG10 Bosch Automotive Service Solutions Inc. (USA)
M600A324 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
Related Parts
2805-00-278-1883INTERCHANGEABLE
RING,PISTON
5905-00-422-2026INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
6910-00-809-6801INTERCHANGEABLE
MOULAGE,WAR WOUND
4940-01-598-2192INTERCHANGEABLE
CLEANING ELEMENT,PIPELINE,FLUID
MG10

Frequently Asked Questions

What is NSN 2805-00-273-0353?

NSN 2805-00-273-0353 is a Ring,piston, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-273-0353?

NSN 2805-00-273-0353 has 13 cross-referenced part numbers: MG10 (Spx Corp), TF10-18 (Spx Corp), 2BN01382 (Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)), R1380F (Mcquay-Norris Inc Oem Div an Skf Industries Co), 512191 (Caterpillar Inc Div Caterpillar Defense) and 8 more.

What NSN replaces 2805-00-273-0353?

There are 4 known substitutes for 2805-00-273-0353: 2805-00-278-1883, 5905-00-422-2026, 6910-00-809-6801 and 1 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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