PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T660100Ring,piston

Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand · NSN 2825-00-529-8619 · FSC 2825 · No Item Name Available
Verified by PartsTable
NSN 2825-00-529-8619 — this item is cataloged by the U.S. Government under National Stock Number 2825-00-529-8619. Primary manufacturer part number: T660100.
Features
  • Ring,piston — FSC 2825
  • FSC Application Data: TURBINE,STEAM
  • Standard Bore Diameter: 2.250 INCHES IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Ring Style: CONCENTRIC
  • Radial Wall Thickness: 0.0730 INCHES MINIMUM AND 0.0830 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
  • Joint Style: VERTICAL JOINT
Applications
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 2825-00-529-8619, is classified within Federal Supply Class 2825 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2825-00-529-8619
Primary Part NumberT660100
Item NameRing,piston
FSC / FSG2825 / 28 — No Item Name Available
ManufacturerSiemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand
StatusACTIVE
FSC Application DataTURBINE,STEAM
Standard Bore Diameter2.250 INCHES IN
MaterialSTEEL CORROSION RESISTING OVERALL
Ring StyleCONCENTRIC
Radial Wall Thickness0.0730 INCHES MINIMUM AND 0.0830 INCHES MAXIMUM IN
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Joint StyleVERTICAL JOINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-542-1365179289 INTERCHANGEABLE
O-Ring
Eaton Aerospace, Llc Dba Jackson South
6850-01-423-2544660100 INTERCHANGEABLE
Desiccant,activated
Agm Container Controls Inc Dba Agm Container Controls Inc
Cross-Reference Index
Part NumberManufacturer
T660100 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
T660100 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
660100 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
ND6433PC1249 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
1249ND6433 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
1249ND6433 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
ND6433PC1249 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
660100 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
Related Parts
5331-00-542-1365INTERCHANGEABLE
O-RING
179289
6850-01-423-2544INTERCHANGEABLE
DESICCANT,ACTIVATED
660100

Frequently Asked Questions

What is NSN 2825-00-529-8619?

NSN 2825-00-529-8619 is a Ring,piston, manufactured by Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand, classified under FSC 2825 (No Item Name Available). Status: active.

What are the part numbers for NSN 2825-00-529-8619?

NSN 2825-00-529-8619 has 8 cross-referenced part numbers: T660100 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), T660100 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 660100 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), ND6433PC1249 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 1249ND6433 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand) and 3 more.

What NSN replaces 2825-00-529-8619?

There are 2 known substitutes for 2825-00-529-8619: 5331-00-542-1365, 6850-01-423-2544. Verify interchangeability with system specifications before substitution.

What are the specifications of T660100?

Key specifications for T660100: FSC Application Data: TURBINE,STEAM; Standard Bore Diameter: 2.250 INCHES IN; Material: STEEL CORROSION RESISTING OVERALL; Overall Width: 0.1860 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN. 8 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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