PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2609-6O-Ring

Fluid Conditioning Products, Inc. · NSN 5331-00-853-2379 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-853-2379 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-853-2379. Primary manufacturer part number: 2609-6.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Center Hole Diameter: 0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
  • 50 verified cross-references
  • Primary manufacturer: Fluid Conditioning Products, Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-853-2379, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Fluid Conditioning Products, Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-853-2379
Primary Part Number2609-6
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFluid Conditioning Products, Inc.
StatusCANCELLED
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Center Hole Diameter0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
Cross-Sectional Height0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3950-00-158-2747 INTERCHANGEABLE
Rod,control
5331-00-165-1981AS3581-906 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5306-00-166-8498118350 INTERCHANGEABLE
Bolt,brake Attached
Dana Off Highway Products, Llc
5935-00-221-910320445 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
5331-00-285-98473-932N507-9 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5330-00-682-4690118350 INTERCHANGEABLE
Packing,preformed
Cummins Inc.
5331-00-803-7208200-2362-010 INTERCHANGEABLE
O-Ring
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5331-00-804-5695MS28778-6 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-819-51113684372C1 INTERCHANGEABLE
O-Ring
Nd Defense Llc
5331-00-827-0326MS28778-28 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
233370-906 Zf Industrieantriebe Witten Gmbh (DEU)
952-0906-410 Zf Industrieantriebe Witten Gmbh (DEU)
26573 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
CA10973-70 Zf Industrieantriebe Witten Gmbh (DEU)
PL7N-3 ITEM 92 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
SF10014PC36 Siemens Energy, Inc. (USA)
1000-012PC6 Aluf Industries Inc (USA)
AN6290-06 Zf Industrieantriebe Witten Gmbh (DEU)
SG4048PC33 Circor Pumps North America Llc (USA)
8616 FIND 38 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
118350 Zf Industrieantriebe Witten Gmbh (DEU)
NK1255-3 Zf Industrieantriebe Witten Gmbh (DEU)
3-906-N507-90 Zf Industrieantriebe Witten Gmbh (DEU)
20256 FIND 22 A Bk Manufacturing Co Inc Dba Bk Aerospace (USA)
20247 FIND 26-3 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
2609-6 Zf Industrieantriebe Witten Gmbh (DEU)
CA11353 PIECE 2 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
SG-4508 PIECE 5 Siemens Energy, Inc. (USA)
20199 FIND 25,2 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
906-7507 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
3950-00-158-2747INTERCHANGEABLE
ROD,CONTROL
5331-00-165-1981INTERCHANGEABLE
O-RING
AS3581-906
5306-00-166-8498INTERCHANGEABLE
BOLT,BRAKE ATTACHED
118350
5935-00-221-9103INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
20445
5331-00-285-9847INTERCHANGEABLE
O-RING
3-932N507-9
5330-00-682-4690INTERCHANGEABLE
PACKING,PREFORMED
118350
5331-00-803-7208INTERCHANGEABLE
O-RING
200-2362-010
5331-00-804-5695INTERCHANGEABLE
O-RING
MS28778-6
5331-00-819-5111INTERCHANGEABLE
O-RING
3684372C1
5331-00-827-0326INTERCHANGEABLE
O-RING
MS28778-28
1660-00-942-8779INTERCHANGEABLE
LATCH,BLOCK ASSEMBL
26096
5365-00-981-7438INTERCHANGEABLE
BUSHING,CONTROL
906750-7

Frequently Asked Questions

What is NSN 5331-00-853-2379?

NSN 5331-00-853-2379 is a O-Ring, manufactured by Fluid Conditioning Products, Inc., classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-853-2379?

NSN 5331-00-853-2379 has 50 cross-referenced part numbers: 233370-906 (Zf Industrieantriebe Witten Gmbh), 952-0906-410 (Zf Industrieantriebe Witten Gmbh), 26573 (Electric Boat Corporation Div General Dynamics Electric Boat), CA10973-70 (Zf Industrieantriebe Witten Gmbh), PL7N-3 ITEM 92 (Air & Liquid Systems Corporation Dba Buffalo Pumps) and 45 more.

What NSN replaces 5331-00-853-2379?

There are 12 known substitutes for 5331-00-853-2379: 3950-00-158-2747, 5331-00-165-1981, 5306-00-166-8498 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2609-6?

Key specifications for 2609-6: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Center Hole Diameter: 0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN; Cross-Sectional Height: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-853-2379 still in active supply?

NSN 5331-00-853-2379 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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