PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

420432Seal,turbine Rear B

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-00-475-0432 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-475-0432 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-475-0432. Primary manufacturer part number: 420432.
Features
  • Seal,turbine Rear B — FSC 2840
  • 4 verified cross-references
  • Primary manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,turbine Rear B, cataloged under National Stock Number 2840-00-475-0432, 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 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2840-00-475-0432
Primary Part Number420432
Item NameSeal,turbine Rear B
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5925-00-189-9591APL1-103-32 INTERCHANGEABLE
Circuit Breaker
Sensata Technologies Maryland, Inc
4730-01-124-9064 INTERCHANGEABLE
Nipple,pipe
Cross-Reference Index
Part NumberManufacturer
420432 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
219335 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
420432 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
219335 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
Related Parts
5925-00-189-9591INTERCHANGEABLE
CIRCUIT BREAKER
APL1-103-32
4730-01-124-9064INTERCHANGEABLE
NIPPLE,PIPE

Frequently Asked Questions

What is NSN 2840-00-475-0432?

NSN 2840-00-475-0432 is a Seal,turbine Rear B, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2840-00-475-0432?

NSN 2840-00-475-0432 has 4 cross-referenced part numbers: 420432 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 219335 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 420432 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 219335 (Turbo Power & Marine System Inc Sub of United Technologies Corp).

What NSN replaces 2840-00-475-0432?

There are 2 known substitutes for 2840-00-475-0432: 5925-00-189-9591, 4730-01-124-9064. Verify interchangeability with system specifications before substitution.

What are the specifications of 420432?

Key specifications for 420432: End Item Identification: J-75 AIRCRAFT ENGINE. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2840-00-475-0432 still in active supply?

NSN 2840-00-475-0432 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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