PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99334O-Ring

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5331-00-599-2821 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-599-2821 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-599-2821. Primary manufacturer part number: 99334.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.121 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
  • Material: RUBBER SYNTHETIC
  • Center Hole Diameter: 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN
  • 3 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 Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-599-2821, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives 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 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-599-2821
Primary Part Number99334
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Cross-Sectional Height0.121 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC
Center Hole Diameter2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5940-00-937-239812802E INTERCHANGEABLE
Terminal,stud
Staffall, Inc. Dba Staffall Inc
Cross-Reference Index
Part NumberManufacturer
99334 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
99334 PRIMARY Rtx Corporation Div Pratt & Whitney (USA)
99334 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
5940-00-937-2398INTERCHANGEABLE
TERMINAL,STUD
12802E

Frequently Asked Questions

What is NSN 5331-00-599-2821?

NSN 5331-00-599-2821 is a O-Ring, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-599-2821?

NSN 5331-00-599-2821 has 3 cross-referenced part numbers: 99334 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 99334 (Rtx Corporation Div Pratt & Whitney), 99334 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5331-00-599-2821?

There is 1 known substitute for 5331-00-599-2821: 5940-00-937-2398. Verify interchangeability with system specifications before substitution.

What are the specifications of 99334?

Key specifications for 99334: Cross-Sectional Height: 0.121 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC; Center Hole Diameter: 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-599-2821 still in active supply?

NSN 5331-00-599-2821 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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