PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

210998Seal,air,aircraft Gas Turbine En

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-00-031-6349 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-031-6349 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-031-6349. Primary manufacturer part number: 210998.
Features
  • Seal,air,aircraft Gas Turbine En — FSC 2840
  • Material: GRAPHITE OVERALL
  • Criticality Code Justification: AGAV
  • Engine Section Location: COMPRESSOR
  • 5 verified cross-references
  • Primary manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Graphite Overall construction
General Description

The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-00-031-6349, 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. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2840-00-031-6349
Primary Part Number210998
Item NameSeal,air,aircraft Gas Turbine En
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
MaterialGRAPHITE OVERALL
Criticality Code JustificationAGAV
Engine Section LocationCOMPRESSOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
1660-00-143-28137956938-507 INTERCHANGEABLE
Latch,oxygen Mask
The Boeing Company
5970-00-296-508421099-1 INTERCHANGEABLE
Insulator,washer
Raytheon Company Dba Raytheon
2835-00-654-681521099-1 INTERCHANGEABLE
Seal,fuel Can
Alamo Aircraft, Ltd.
5340-01-124-6453261158 INTERCHANGEABLE
Clip,spring Tension
Valcor Engineering Corporation
7510-01-143-2756 INTERCHANGEABLE
Typing Element
Cross-Reference Index
Part NumberManufacturer
210998 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
210991 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
384535 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
261158 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
210995 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
1660-00-143-2813INTERCHANGEABLE
LATCH,OXYGEN MASK
7956938-507
5970-00-296-5084INTERCHANGEABLE
INSULATOR,WASHER
21099-1
2835-00-654-6815INTERCHANGEABLE
SEAL,FUEL CAN
21099-1
5340-01-124-6453INTERCHANGEABLE
CLIP,SPRING TENSION
261158
7510-01-143-2756INTERCHANGEABLE
TYPING ELEMENT

Frequently Asked Questions

What is NSN 2840-00-031-6349?

NSN 2840-00-031-6349 is a Seal,air,aircraft Gas Turbine En, 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 2840-00-031-6349?

NSN 2840-00-031-6349 has 5 cross-referenced part numbers: 210998 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 210991 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 384535 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 261158 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 210995 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-00-031-6349?

There are 5 known substitutes for 2840-00-031-6349: 1660-00-143-2813, 5970-00-296-5084, 2835-00-654-6815 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 210998?

Key specifications for 210998: End Item Identification: ACFT ENG J57; Overall Length: 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN; Material: GRAPHITE OVERALL; Criticality Code Justification: AGAV. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2840-00-031-6349 still in active supply?

NSN 2840-00-031-6349 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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