PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ARP568-225O-Ring

Society of Automotive Engineers Inc · NSN 5331-00-853-4408 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-853-4408 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-853-4408. Primary manufacturer part number: ARP568-225.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SILICONE CLASS Q
  • Outside Diameter: 2.137 INCHES NOMINAL IN
  • Center Hole Diameter: 1.849 INCHES MINIMUM AND 1.869 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • 4 verified cross-references
  • Primary manufacturer: Society of Automotive Engineers Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Class Q construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-853-4408, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-853-4408
Primary Part NumberARP568-225
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusACTIVE
MaterialRUBBER SILICONE CLASS Q
Outside Diameter2.137 INCHES NOMINAL IN
Center Hole Diameter1.849 INCHES MINIMUM AND 1.869 INCHES MAXIMUM IN
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-422-0344PRP568-225-1235-60 INTERCHANGEABLE
O-Ring
Parco, Llc
5331-00-796-4586 INTERCHANGEABLE
O-Ring
5331-00-811-8919 INTERCHANGEABLE
O-Ring
5331-01-044-2314 INTERCHANGEABLE
O-Ring
5331-01-486-1727AS568-225 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
ARP568-225 Society of Automotive Engineers Inc (USA)
AS568-225 Society of Automotive Engineers Inc (USA)
AS568-225 Sae International Dba Sae International (USA)
ARP568-225 Sae International Dba Sae International (USA)
Related Parts
5331-00-422-0344INTERCHANGEABLE
O-RING
PRP568-225-1235-60
5331-00-796-4586INTERCHANGEABLE
O-RING
5331-00-811-8919INTERCHANGEABLE
O-RING
5331-01-044-2314INTERCHANGEABLE
O-RING
5331-01-486-1727INTERCHANGEABLE
O-RING
AS568-225

Frequently Asked Questions

What is NSN 5331-00-853-4408?

NSN 5331-00-853-4408 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-853-4408?

NSN 5331-00-853-4408 has 4 cross-referenced part numbers: ARP568-225 (Society of Automotive Engineers Inc), AS568-225 (Society of Automotive Engineers Inc), AS568-225 (Sae International Dba Sae International), ARP568-225 (Sae International Dba Sae International).

What NSN replaces 5331-00-853-4408?

There are 5 known substitutes for 5331-00-853-4408: 5331-00-422-0344, 5331-00-796-4586, 5331-00-811-8919 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ARP568-225?

Key specifications for ARP568-225: Material: RUBBER SILICONE CLASS Q; Outside Diameter: 2.137 INCHES NOMINAL IN; Center Hole Diameter: 1.849 INCHES MINIMUM AND 1.869 INCHES MAXIMUM IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

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