PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HJ-26X3Restrictor,fluid Flow

Siemens Energy, Inc. · NSN 4730-01-199-3028 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-199-3028 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-199-3028. Primary manufacturer part number: HJ-26X3.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Design Type: TUBULAR
  • Surface Treatment: PASSIVATE
  • Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED
  • 3 verified cross-references
  • Primary manufacturer: Siemens Energy, Inc.
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-199-3028, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Siemens Energy, Inc.. Government technical data includes 3 verified specifications, 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
NSN4730-01-199-3028
Primary Part NumberHJ-26X3
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSiemens Energy, Inc.
StatusACTIVE
Design TypeTUBULAR
Surface TreatmentPASSIVATE
Thread ProvisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
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.
2825-01-199-7988MS201BTX1 INTERCHANGEABLE
Segment,retainer Ring,steam Turb
Siemens Energy, Inc.
Cross-Reference Index
Part NumberManufacturer
HJ-26X3 PRIMARY Siemens Energy, Inc. (USA)
J-1660 Siemens Energy, Inc. (USA)
J-1660 PIECE 41 Siemens Energy, Inc. (USA)
Related Parts
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
2825-01-199-7988INTERCHANGEABLE
SEGMENT,RETAINER RING,STEAM TURB
MS201BTX1

Frequently Asked Questions

What is NSN 4730-01-199-3028?

NSN 4730-01-199-3028 is a Restrictor,fluid Flow, manufactured by Siemens Energy, Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-199-3028?

NSN 4730-01-199-3028 has 3 cross-referenced part numbers: HJ-26X3 (Siemens Energy, Inc.), J-1660 (Siemens Energy, Inc.), J-1660 PIECE 41 (Siemens Energy, Inc.).

What NSN replaces 4730-01-199-3028?

There are 6 known substitutes for 4730-01-199-3028: 2825-01-199-5759, 2825-01-199-5760, 2825-01-199-5761 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HJ-26X3?

Key specifications for HJ-26X3: Design Type: TUBULAR; Surface Treatment: PASSIVATE; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED. 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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