PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

645239Seal,oil,turbine,de

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5330-00-135-8645 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-135-8645 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-135-8645. Primary manufacturer part number: 645239.
Features
  • Seal,oil,turbine,de — FSC 5330
  • 6 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,oil,turbine,de, cataloged under National Stock Number 5330-00-135-8645, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal,oil,turbine,de
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersRtx Corporation Div Pratt & Whitney (CAGE 52661); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445)
Technical Specifications
ParameterValue
NSN5330-00-135-8645
Primary Part Number645239
Item NameSeal,oil,turbine,de
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-830-7106762906 INTERCHANGEABLE
Seal Ring,metal
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Cross-Reference Index
Part NumberManufacturer
645239 Rtx Corporation Div Pratt & Whitney (USA)
645239 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
490354 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
645238 Rtx Corporation Div Pratt & Whitney (USA)
645238 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
490354 Rtx Corporation Div Pratt & Whitney (USA)
Related Parts
5330-00-830-7106INTERCHANGEABLE
SEAL RING,METAL
762906

Frequently Asked Questions

What is NSN 5330-00-135-8645?

NSN 5330-00-135-8645 is a Seal,oil,turbine,de, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-135-8645?

NSN 5330-00-135-8645 has 6 cross-referenced part numbers: 645239 (Rtx Corporation Div Pratt & Whitney), 645239 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 490354 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 645238 (Rtx Corporation Div Pratt & Whitney), 645238 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 1 more.

What NSN replaces 5330-00-135-8645?

There is 1 known substitute for 5330-00-135-8645: 5330-00-830-7106. Verify interchangeability with system specifications before substitution.

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