PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS201BTX1Segment,retainer Ring,steam Turb

Siemens Energy, Inc. · NSN 2825-01-199-7988 · FSC 2825 · No Item Name Available
Verified by PartsTable
NSN 2825-01-199-7988 — this item is cataloged by the U.S. Government under National Stock Number 2825-01-199-7988. Primary manufacturer part number: MS201BTX1.
Features
  • Segment,retainer Ring,steam Turb — FSC 2825
  • General Characteristics Item Description: STEEL MIL-S-861,CL405 COND. AN; FOUR SEGMENTS; SEGMENT W 1.490 IN.; SEGMENT THD 0.139 IN. IN
  • 3 verified cross-references
  • Primary manufacturer: Siemens Energy, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Segment,retainer Ring,steam Turb, cataloged under National Stock Number 2825-01-199-7988, 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 Energy, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references 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
NSN2825-01-199-7988
Primary Part NumberMS201BTX1
Item NameSegment,retainer Ring,steam Turb
FSC / FSG2825 / 28 — No Item Name Available
ManufacturerSiemens Energy, Inc.
StatusACTIVE
General Characteristics Item DescriptionSTEEL MIL-S-861,CL405 COND. AN; FOUR SEGMENTS; SEGMENT W 1.490 IN.; SEGMENT THD 0.139 IN. IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-01-199-3028HJ-26X3 INTERCHANGEABLE
Restrictor,fluid Flow
Siemens Energy, Inc.
2825-01-199-5759141-0514 INTERCHANGEABLE
Ring,tightening,turbine
Siemens Energy, Inc.
2825-01-199-5760141-0515 INTERCHANGEABLE
Ring,tightening,turbine
Siemens Energy, Inc.
2825-01-199-5761141-0513 INTERCHANGEABLE
Ring,tightening,turbine
Siemens Energy, Inc.
2825-01-199-7986MS-555B INTERCHANGEABLE
Collar,steam Turbine
Siemens Energy, Inc.
2825-01-199-7987GJ-555A INTERCHANGEABLE
Collar,steam Turbine
Siemens Energy, Inc.
Cross-Reference Index
Part NumberManufacturer
J-1660 Siemens Energy, Inc. (USA)
MS201BTX1 PRIMARY Siemens Energy, Inc. (USA)
J-1660 PIECE 43 Siemens Energy, Inc. (USA)
Related Parts
4730-01-199-3028INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
HJ-26X3
2825-01-199-5759INTERCHANGEABLE
RING,TIGHTENING,TURBINE
141-0514
2825-01-199-5760INTERCHANGEABLE
RING,TIGHTENING,TURBINE
141-0515
2825-01-199-5761INTERCHANGEABLE
RING,TIGHTENING,TURBINE
141-0513
2825-01-199-7986INTERCHANGEABLE
COLLAR,STEAM TURBINE
MS-555B
2825-01-199-7987INTERCHANGEABLE
COLLAR,STEAM TURBINE
GJ-555A

Frequently Asked Questions

What is NSN 2825-01-199-7988?

NSN 2825-01-199-7988 is a Segment,retainer Ring,steam Turb, manufactured by Siemens Energy, Inc., classified under FSC 2825 (No Item Name Available). Status: active.

What are the part numbers for NSN 2825-01-199-7988?

NSN 2825-01-199-7988 has 3 cross-referenced part numbers: J-1660 (Siemens Energy, Inc.), MS201BTX1 (Siemens Energy, Inc.), J-1660 PIECE 43 (Siemens Energy, Inc.).

What NSN replaces 2825-01-199-7988?

There are 6 known substitutes for 2825-01-199-7988: 4730-01-199-3028, 2825-01-199-5759, 2825-01-199-5760 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS201BTX1?

Key specifications for MS201BTX1: General Characteristics Item Description: STEEL MIL-S-861,CL405 COND. AN; FOUR SEGMENTS; SEGMENT W 1.490 IN.; SEGMENT THD 0.139 IN. IN. 1 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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