PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-145Ring,piston

Dresser Industries Inc Leroi Div · NSN 2805-00-424-5486 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-424-5486 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-424-5486. Primary manufacturer part number: 18-145.
Features
  • Ring,piston — FSC 2805
  • Standard Bore Diameter: 7.000 INCHES IN
  • Material: STEEL OVERALL
  • Radial Wall Thickness: 0.2650 INCHES NOMINAL IN
  • Ring Style: CONCENTRIC
  • Cross-Sectional Shape Style: STRAIGHT FACE, BOTTOM RELIEF
  • Joint Style: VERTICAL JOINT
  • 1 verified cross-reference
Applications
  • Applications requiring Steel Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-424-5486, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-424-5486
Primary Part Number18-145
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Standard Bore Diameter7.000 INCHES IN
MaterialSTEEL OVERALL
Radial Wall Thickness0.2650 INCHES NOMINAL IN
Ring StyleCONCENTRIC
Cross-Sectional Shape StyleSTRAIGHT FACE, BOTTOM RELIEF
Joint StyleVERTICAL JOINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1650-00-890-768218145 INTERCHANGEABLE
Cap,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5961-00-931-0385RT9343 INTERCHANGEABLE
Transistor
Raytheon Company Div Corp
5310-00-961-801218145 INTERCHANGEABLE
Nut,piston Socket
Eaton Aerospace, Llc Dba Jackson South
5935-01-015-828918145 INTERCHANGEABLE
Connector,receptacle,electrical
Drs Advanced Isr, Llc
5950-01-057-504012846 INTERCHANGEABLE
Transformer,power
Magnespec Inc
1650-01-310-044918145 INTERCHANGEABLE
Housing,actuator
Cadillac Gage Textron Inc.
6550-01-587-188902164 INTERCHANGEABLE
Test Kit,blood Typing
Altitude Technologies Inc. Dba Chinook Medical Gear
Cross-Reference Index
Part NumberManufacturer
18-145 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
1650-00-890-7682INTERCHANGEABLE
CAP,VALVE
18145
5961-00-931-0385INTERCHANGEABLE
TRANSISTOR
RT9343
5310-00-961-8012INTERCHANGEABLE
NUT,PISTON SOCKET
18145
5935-01-015-8289INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
18145
5950-01-057-5040INTERCHANGEABLE
TRANSFORMER,POWER
12846
1650-01-310-0449INTERCHANGEABLE
HOUSING,ACTUATOR
18145
6550-01-587-1889INTERCHANGEABLE
TEST KIT,BLOOD TYPING
02164

Frequently Asked Questions

What is NSN 2805-00-424-5486?

NSN 2805-00-424-5486 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 2805-00-424-5486?

NSN 2805-00-424-5486 has 1 cross-referenced part number: 18-145 (Dresser Industries Inc Leroi Div).

What NSN replaces 2805-00-424-5486?

There are 7 known substitutes for 2805-00-424-5486: 1650-00-890-7682, 5961-00-931-0385, 5310-00-961-8012 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-145?

Key specifications for 18-145: Standard Bore Diameter: 7.000 INCHES IN; Material: STEEL OVERALL; Radial Wall Thickness: 0.2650 INCHES NOMINAL IN; Ring Style: CONCENTRIC. 7 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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