PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

350346Sealing Ring,turbin

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-00-700-4268 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-700-4268 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-700-4268. Primary manufacturer part number: 350346.
Features
  • Sealing Ring,turbin — FSC 2840
  • 2 verified cross-references
  • Primary manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sealing Ring,turbin, cataloged under National Stock Number 2840-00-700-4268, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSealing Ring,turbin
FSC / FSG2840 — No Item Name Available (FSG 28)
ManufacturersTurbo Power & Marine System Inc Sub of United Technologies Corp (CAGE 11449); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445)
Technical Specifications
ParameterValue
NSN2840-00-700-4268
Primary Part Number350346
Item NameSealing Ring,turbin
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5325-00-045-2676MS124657 INTERCHANGEABLE
Insert,screw Thread
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
6650-01-065-44913152216 INTERCHANGEABLE
Ring,retaining,optical Element
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3120-01-503-526735-346 INTERCHANGEABLE
Bearing,sleeve
Crane Carrier Company, Llc
Cross-Reference Index
Part NumberManufacturer
350346 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
350346 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5325-00-045-2676INTERCHANGEABLE
INSERT,SCREW THREAD
MS124657
6650-01-065-4491INTERCHANGEABLE
RING,RETAINING,OPTICAL ELEMENT
3152216
3120-01-503-5267INTERCHANGEABLE
BEARING,SLEEVE
35-346

Frequently Asked Questions

What is NSN 2840-00-700-4268?

NSN 2840-00-700-4268 is a Sealing Ring,turbin, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840 (No Item Name Available). Status: active.

What are the part numbers for NSN 2840-00-700-4268?

NSN 2840-00-700-4268 has 2 cross-referenced part numbers: 350346 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 350346 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-00-700-4268?

There are 3 known substitutes for 2840-00-700-4268: 5325-00-045-2676, 6650-01-065-4491, 3120-01-503-5267. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com