PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-146Ring,piston

Dresser Industries Inc Leroi Div · NSN 2805-00-424-5487 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-424-5487 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-424-5487. Primary manufacturer part number: 18-146.
Features
  • Ring,piston — FSC 2805
  • Oil Passage Type and Quantity: 1 GROOVE OUTSIDE PERIPHERY
  • Radial Wall Thickness: 0.2700 INCHES NOMINAL IN
  • Material: IRON OVERALL
  • Joint Style: VERTICAL JOINT
  • Oil Passage Type and Quantity: 12 SLOT HORIZONTALLY THROUGH RING
  • Cross-Sectional Shape Style: BEVELED FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
  • Standard Bore Diameter: 7.062 INCHES IN
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-424-5487, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-424-5487
Primary Part Number18-146
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Oil Passage Type and Quantity1 GROOVE OUTSIDE PERIPHERY
Radial Wall Thickness0.2700 INCHES NOMINAL IN
MaterialIRON OVERALL
Joint StyleVERTICAL JOINT
Oil Passage Type and Quantity12 SLOT HORIZONTALLY THROUGH RING
Cross-Sectional Shape StyleBEVELED FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
Standard Bore Diameter7.062 INCHES IN
Ring StyleCONCENTRIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3510-00-172-375618146 INTERCHANGEABLE
Cover,padding,commercial Laundry
Forenta Lp
5961-00-225-2199RT9338 INTERCHANGEABLE
Transistor
Raytheon Company Dba Raytheon Co
1650-00-724-086018146 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Cadillac Gage Textron Inc.
5120-00-804-6053 INTERCHANGEABLE
Inserter,screw Thread Insert
5905-00-822-3286 INTERCHANGEABLE
Resistor,variable,wire Wound,non
4820-00-867-668418-1-46 INTERCHANGEABLE
Disk,valve
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5895-00-990-654272412 INTERCHANGEABLE
Cover,electronic Communication E
Textron Lycoming Inc Williamsport Plant
6530-01-588-8059 INTERCHANGEABLE
Carrier,litter,wheeled
1005-01-684-483918146 INTERCHANGEABLE
Receiver,automatic Gun
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
18-146 PRIMARY Dresser Industries Inc Leroi Div (USA)
72412 Dana Corp Engine Products Div (USA)
Related Parts
3510-00-172-3756INTERCHANGEABLE
COVER,PADDING,COMMERCIAL LAUNDRY
18146
5961-00-225-2199INTERCHANGEABLE
TRANSISTOR
RT9338
1650-00-724-0860INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
18146
5120-00-804-6053INTERCHANGEABLE
INSERTER,SCREW THREAD INSERT
5905-00-822-3286INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4820-00-867-6684INTERCHANGEABLE
DISK,VALVE
18-1-46
5895-00-990-6542INTERCHANGEABLE
COVER,ELECTRONIC COMMUNICATION E
72412
6530-01-588-8059INTERCHANGEABLE
CARRIER,LITTER,WHEELED
1005-01-684-4839INTERCHANGEABLE
RECEIVER,AUTOMATIC GUN
18146

Frequently Asked Questions

What is NSN 2805-00-424-5487?

NSN 2805-00-424-5487 is a Ring,piston, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-424-5487?

NSN 2805-00-424-5487 has 2 cross-referenced part numbers: 18-146 (Dresser Industries Inc Leroi Div), 72412 (Dana Corp Engine Products Div).

What NSN replaces 2805-00-424-5487?

There are 9 known substitutes for 2805-00-424-5487: 3510-00-172-3756, 5961-00-225-2199, 1650-00-724-0860 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-146?

Key specifications for 18-146: Oil Passage Type and Quantity: 1 GROOVE OUTSIDE PERIPHERY; Radial Wall Thickness: 0.2700 INCHES NOMINAL IN; Material: IRON OVERALL; Joint Style: VERTICAL JOINT. 9 total characteristics are documented in the Federal Logistics Information System.

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