PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204-69Ring Set,piston

Dresser Industries Inc Leroi Div · NSN 4310-00-390-3441 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-390-3441 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-390-3441. Primary manufacturer part number: 204-69.
Features
  • Ring Set,piston — FSC 4310
  • Ring Set Component Parts: 35301 18-180 COMPRESSION RING 2; 35301 18-236 OIL RING 2
  • Piston Accommodation Quantity: 1
  • Standard Bore Diameter: 5.000 INCHES IN
  • 1 verified cross-reference
  • Primary manufacturer: Dresser Industries Inc Leroi Div
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring Set,piston, cataloged under National Stock Number 4310-00-390-3441, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 3 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-390-3441
Primary Part Number204-69
Item NameRing Set,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Ring Set Component Parts35301 18-180 COMPRESSION RING 2; 35301 18-236 OIL RING 2
Piston Accommodation Quantity1
Standard Bore Diameter5.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-262-473720-469 INTERCHANGEABLE
Washer,flat
Dresser Industries Inc Leroi Div
5310-00-434-4251 INTERCHANGEABLE
Washer,lock
4140-01-051-4427 INTERCHANGEABLE
Impeller,fan,centrifugal
5315-01-174-883820-554 INTERCHANGEABLE
Pin,shoulder,headless
Cmbf, Llc Dba Cmbf Llc
2910-01-318-136220090 INTERCHANGEABLE
Hydraulic Head and Rotor
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6685-01-539-9196 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
204-69 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
5310-00-262-4737INTERCHANGEABLE
WASHER,FLAT
20-469
5310-00-434-4251INTERCHANGEABLE
WASHER,LOCK
4140-01-051-4427INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
5315-01-174-8838INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
20-554
2910-01-318-1362INTERCHANGEABLE
HYDRAULIC HEAD AND ROTOR
20090
6685-01-539-9196INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 4310-00-390-3441?

NSN 4310-00-390-3441 is a Ring Set,piston, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-390-3441?

NSN 4310-00-390-3441 has 1 cross-referenced part number: 204-69 (Dresser Industries Inc Leroi Div).

What NSN replaces 4310-00-390-3441?

There are 6 known substitutes for 4310-00-390-3441: 5310-00-262-4737, 5310-00-434-4251, 4140-01-051-4427 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 204-69?

Key specifications for 204-69: Ring Set Component Parts: 35301 18-180 COMPRESSION RING 2; 35301 18-236 OIL RING 2; Piston Accommodation Quantity: 1; Standard Bore Diameter: 5.000 INCHES IN. 3 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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