PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2615-226O-Ring

Fluid Conditioning Products, Inc. · NSN 5331-00-576-9732 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-576-9732 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-576-9732. Primary manufacturer part number: 2615-226.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.974 INCHES MINIMUM AND 1.994 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Outside Diameter: 2.236 INCHES MINIMUM AND 2.288 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 5331-00-576-9732, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 23 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
NSN5331-00-576-9732
Primary Part Number2615-226
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFluid Conditioning Products, Inc.
StatusCANCELLED
Center Hole Diameter1.974 INCHES MINIMUM AND 1.994 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Outside Diameter2.236 INCHES MINIMUM AND 2.288 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-078-7300 INTERCHANGEABLE
O-Ring
5331-00-180-9122 INTERCHANGEABLE
O-Ring
5331-00-230-52256230-4 INTERCHANGEABLE
O-Ring
Aerol Llc
5330-00-434-6225 INTERCHANGEABLE
Packing,preformed
3110-00-516-5491209 INTERCHANGEABLE
Bearing,ball,annular
Federal-Mogul Corp Government Sales Dept
5331-00-579-7927MS28775-225 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-606-8994 INTERCHANGEABLE
O-Ring
5331-00-717-3981 INTERCHANGEABLE
O-Ring
5331-01-072-9191 INTERCHANGEABLE
O-Ring
4820-01-079-115872368 INTERCHANGEABLE
Valve,spoon
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
Cross-Reference Index
Part NumberManufacturer
137618239 Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA)
2615-226 PRIMARY Fluid Conditioning Products, Inc. (USA)
SR226SR832-75A Le Joint Francais (FRA)
MS28775-226 Bae Systems Land & Armaments L.p. (USA)
D-34162 Chemetron Fire Systems (USA)
ARP568-226MILP5 516-70 Zf Industrieantriebe Witten Gmbh (DEU)
72368 Zf Industrieantriebe Witten Gmbh (DEU)
AS568-226MIL-P- 5516CLB Zf Industrieantriebe Witten Gmbh (DEU)
MS28775-226 Le Joint Francais (FRA)
AN6230B04 Zf Industrieantriebe Witten Gmbh (DEU)
MS28775-226 PRIMARY Sae International Dba Sae International (USA)
226 Zf Industrieantriebe Witten Gmbh (DEU)
Q-0071070 Zf Industrieantriebe Witten Gmbh (DEU)
4564-226,FG Zf Industrieantriebe Witten Gmbh (DEU)
SS845-2180927PC Naval Ship Systems Command (USA)
D1-061-0945 ITEM 23 Chemetron Fire Systems (USA)
226 ITM12 PL708 Zf Industrieantriebe Witten Gmbh (DEU)
MS28775-226 Seals & Packings, Llc (USA)
ARP568-226MILP2 5732 Zf Industrieantriebe Witten Gmbh (DEU)
LS4629 4 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5331-00-078-7300INTERCHANGEABLE
O-RING
5331-00-180-9122INTERCHANGEABLE
O-RING
5331-00-230-5225INTERCHANGEABLE
O-RING
6230-4
5330-00-434-6225INTERCHANGEABLE
PACKING,PREFORMED
3110-00-516-5491INTERCHANGEABLE
BEARING,BALL,ANNULAR
209
5331-00-579-7927INTERCHANGEABLE
O-RING
MS28775-225
5331-00-606-8994INTERCHANGEABLE
O-RING
5331-00-717-3981INTERCHANGEABLE
O-RING
5331-01-072-9191INTERCHANGEABLE
O-RING
4820-01-079-1158INTERCHANGEABLE
VALVE,SPOON
72368
5331-01-096-8817INTERCHANGEABLE
O-RING
5330-01-213-9369INTERCHANGEABLE
PACKING,PREFORMED

Frequently Asked Questions

What is NSN 5331-00-576-9732?

NSN 5331-00-576-9732 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 5331-00-576-9732?

NSN 5331-00-576-9732 has 50 cross-referenced part numbers: 137618239 (Leonardo S.p.a. - Electronics Division - Defence Business Area), 2615-226 (Fluid Conditioning Products, Inc.), SR226SR832-75A (Le Joint Francais), MS28775-226 (Bae Systems Land & Armaments L.p.), D-34162 (Chemetron Fire Systems) and 45 more.

What NSN replaces 5331-00-576-9732?

There are 12 known substitutes for 5331-00-576-9732: 5331-00-078-7300, 5331-00-180-9122, 5331-00-230-5225 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2615-226?

Key specifications for 2615-226: Center Hole Diameter: 1.974 INCHES MINIMUM AND 1.994 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-576-9732 still in active supply?

NSN 5331-00-576-9732 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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