PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-235Ring,piston

Dresser Industries Inc Leroi Div · NSN 2805-00-274-3368 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-274-3368 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-274-3368. Primary manufacturer part number: 18-235.
Features
  • Ring,piston — FSC 2805
  • Ring Style: CONCENTRIC
  • Radial Wall Thickness: 0.1850 INCHES MINIMUM AND 0.1950 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
  • Standard Bore Diameter: 5.000 INCHES IN
  • Joint Style: VERTICAL JOINT
  • Material: IRON OVERALL
  • 1 verified cross-reference
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2805-00-274-3368, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2805-00-274-3368
Primary Part Number18-235
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusCANCELLED
Ring StyleCONCENTRIC
Radial Wall Thickness0.1850 INCHES MINIMUM AND 0.1950 INCHES MAXIMUM IN
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Standard Bore Diameter5.000 INCHES IN
Joint StyleVERTICAL JOINT
MaterialIRON OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5930-00-137-72841823-5 INTERCHANGEABLE
Switch,pressure
Dwyer Instruments Inc
5940-00-242-7036FT9 INTERCHANGEABLE
Terminal,feedthru
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
4730-00-640-1051137422 INTERCHANGEABLE
Elbow,pipe to Tube
Chrysler Realty Company Llc Dba Daimler Chrysler
6140-00-831-568218235 INTERCHANGEABLE
Can Assy,storage Ba
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
4820-01-022-3127U51TB-V INTERCHANGEABLE
Valve,ball
Nibco Inc Chemtrol Div
5340-01-153-096218235 INTERCHANGEABLE
Cover,access
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5310-01-159-1118903524 INTERCHANGEABLE
Washer,lock
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
4810-01-421-678118235 INTERCHANGEABLE
Valve,solenoid
Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
6520-01-587-7684SSW 14886 INTERCHANGEABLE
Bur,dental Surgery
Ss White Burs Llc
Cross-Reference Index
Part NumberManufacturer
18-235 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
5930-00-137-7284INTERCHANGEABLE
SWITCH,PRESSURE
1823-5
5940-00-242-7036INTERCHANGEABLE
TERMINAL,FEEDTHRU
FT9
4730-00-640-1051INTERCHANGEABLE
ELBOW,PIPE TO TUBE
137422
6140-00-831-5682INTERCHANGEABLE
CAN ASSY,STORAGE BA
18235
4820-01-022-3127INTERCHANGEABLE
VALVE,BALL
U51TB-V
5340-01-153-0962INTERCHANGEABLE
COVER,ACCESS
18235
5310-01-159-1118INTERCHANGEABLE
WASHER,LOCK
903524
4810-01-421-6781INTERCHANGEABLE
VALVE,SOLENOID
18235
6520-01-587-7684INTERCHANGEABLE
BUR,DENTAL SURGERY
SSW 14886

Frequently Asked Questions

What is NSN 2805-00-274-3368?

NSN 2805-00-274-3368 is a Ring,piston, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-274-3368?

NSN 2805-00-274-3368 has 1 cross-referenced part number: 18-235 (Dresser Industries Inc Leroi Div).

What NSN replaces 2805-00-274-3368?

There are 9 known substitutes for 2805-00-274-3368: 5930-00-137-7284, 5940-00-242-7036, 4730-00-640-1051 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-235?

Key specifications for 18-235: Ring Style: CONCENTRIC; Radial Wall Thickness: 0.1850 INCHES MINIMUM AND 0.1950 INCHES MAXIMUM IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Overall Width: 0.1545 INCHES MINIMUM AND 0.1550 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-274-3368 still in active supply?

NSN 2805-00-274-3368 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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