PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

343BTubenest Assembly

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 4310-00-143-6876 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-143-6876 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-143-6876. Primary manufacturer part number: 343B.
Features
  • Tubenest Assembly — FSC 4310
  • 4 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Tubenest Assembly, cataloged under National Stock Number 4310-00-143-6876, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTubenest Assembly
FSC / FSG4310 — No Item Name Available (FSG 43)
ManufacturersDresser-Rand Co Worthington Compressor Opn a Joint Venture (CAGE 93236); Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (CAGE 8FGX3); Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (CAGE 830Q4); Siemens Energy, Inc. Dba Dresser-Rand (CAGE 0AT62)
Technical Specifications
ParameterValue
NSN4310-00-143-6876
Primary Part Number343B
Item NameTubenest Assembly
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-00-058-0159343B INTERCHANGEABLE
Semiconductor Device,diode
Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp
5110-00-224-9928PD5110-00-224-9928 INTERCHANGEABLE
Scraper,ship
General Services Administration Federal Supply Service
Cross-Reference Index
Part NumberManufacturer
343B Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
343B PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
343B Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
343B Siemens Energy, Inc. Dba Dresser-Rand (USA)
Related Parts
5961-00-058-0159INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
343B
5110-00-224-9928INTERCHANGEABLE
SCRAPER,SHIP
PD5110-00-224-9928

Frequently Asked Questions

What is NSN 4310-00-143-6876?

NSN 4310-00-143-6876 is a Tubenest Assembly, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-143-6876?

NSN 4310-00-143-6876 has 4 cross-referenced part numbers: 343B (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 343B (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 343B (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 343B (Siemens Energy, Inc. Dba Dresser-Rand).

What NSN replaces 4310-00-143-6876?

There are 2 known substitutes for 4310-00-143-6876: 5961-00-058-0159, 5110-00-224-9928. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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