PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

503570Seal Assy,compress

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-00-939-3380 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-939-3380 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-939-3380. Primary manufacturer part number: 503570.
Features
  • Seal Assy,compress — FSC 2840
  • 1 verified cross-reference
  • 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 Assy,compress, cataloged under National Stock Number 2840-00-939-3380, 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 1 commercial cross-reference from 1 manufacturer, 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 NameSeal Assy,compress
FSC / FSG2840 — No Item Name Available (FSG 28)
ManufacturersRtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445)
Technical Specifications
ParameterValue
NSN2840-00-939-3380
Primary Part Number503570
Item NameSeal Assy,compress
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5999-00-197-2960503570 INTERCHANGEABLE
Contact,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-374-814459X4 INTERCHANGEABLE
Inverted Nut,tube Coupling
Danfoss Power Solutions II, Llc
3020-01-149-4853 INTERCHANGEABLE
Pulley
Cross-Reference Index
Part NumberManufacturer
503570 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5999-00-197-2960INTERCHANGEABLE
CONTACT,ELECTRICAL
503570
4730-00-374-8144INTERCHANGEABLE
INVERTED NUT,TUBE COUPLING
59X4
3020-01-149-4853INTERCHANGEABLE
PULLEY

Frequently Asked Questions

What is NSN 2840-00-939-3380?

NSN 2840-00-939-3380 is a Seal Assy,compress, 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 2840-00-939-3380?

NSN 2840-00-939-3380 has 1 cross-referenced part number: 503570 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-00-939-3380?

There are 3 known substitutes for 2840-00-939-3380: 5999-00-197-2960, 4730-00-374-8144, 3020-01-149-4853. Verify interchangeability with system specifications before substitution.

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