PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568BO-Ring

Society of Automotive Engineers Inc · NSN 5331-00-450-7390 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-450-7390 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-450-7390. Primary manufacturer part number: AS568B.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 3.222 INCHES MINIMUM AND 3.252 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • 8 verified cross-references
  • Primary manufacturer: Society of Automotive Engineers 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 5331-00-450-7390, 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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN5331-00-450-7390
Primary Part NumberAS568B
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Center Hole Diameter3.222 INCHES MINIMUM AND 3.252 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-020-7106 INTERCHANGEABLE
O-Ring
5331-00-021-3583ARP568-218MILG24102 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-097-2600 INTERCHANGEABLE
O-Ring
5331-00-102-31074189T73P01 INTERCHANGEABLE
O-Ring
General Electric Company Dba Ge Aerospace
5331-00-141-5083PRP914-46 142-70 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
5331-00-182-301210553924-4 INTERCHANGEABLE
O-Ring
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5331-00-547-3845AS568B-167 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-579-6523AS568B INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-683-9513 INTERCHANGEABLE
O-Ring
5331-00-683-9569SAE AS568B-158 INTERCHANGEABLE
O-Ring
Sae Customer Service Dept 2045
Cross-Reference Index
Part NumberManufacturer
AS568B Society of Automotive Engineers Inc (USA)
MIL-STD-413C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
152-7507 Parker Hannifin Corporation Div O-Ring Division (USA)
AS568B Sae International Dba Sae International (USA)
10501649 General Dynamics Land Systems Canadacorp (CAN)
PRP152-7507 Parker Hannifin Corporation Div O-Ring Division (USA)
152-8307 Parker Hannifin Corporation Div O-Ring Division (USA)
152-7507 Parker Hannifin Canada (CAN)
Related Parts
5331-00-020-7106INTERCHANGEABLE
O-RING
5331-00-021-3583INTERCHANGEABLE
O-RING
ARP568-218MILG24102
5331-00-097-2600INTERCHANGEABLE
O-RING
5331-00-102-3107INTERCHANGEABLE
O-RING
4189T73P01
5331-00-141-5083INTERCHANGEABLE
O-RING
PRP914-46 142-70
5331-00-182-3012INTERCHANGEABLE
O-RING
10553924-4
5331-00-547-3845INTERCHANGEABLE
O-RING
AS568B-167
5331-00-579-6523INTERCHANGEABLE
O-RING
AS568B
5331-00-683-9513INTERCHANGEABLE
O-RING
5331-00-683-9569INTERCHANGEABLE
O-RING
SAE AS568B-158
5331-00-684-2286INTERCHANGEABLE
O-RING
AS3578-254
5331-00-811-3692INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-00-450-7390?

NSN 5331-00-450-7390 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-450-7390?

NSN 5331-00-450-7390 has 8 cross-referenced part numbers: AS568B (Society of Automotive Engineers Inc), MIL-STD-413C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 152-7507 (Parker Hannifin Corporation Div O-Ring Division), AS568B (Sae International Dba Sae International), 10501649 (General Dynamics Land Systems Canadacorp) and 3 more.

What NSN replaces 5331-00-450-7390?

There are 12 known substitutes for 5331-00-450-7390: 5331-00-020-7106, 5331-00-021-3583, 5331-00-097-2600 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568B?

Key specifications for AS568B: Center Hole Diameter: 3.222 INCHES MINIMUM AND 3.252 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-450-7390 still in active supply?

NSN 5331-00-450-7390 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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