PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS568-220O-Ring

Sae International Dba Sae International · NSN 5331-00-140-7665 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-140-7665 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-140-7665. Primary manufacturer part number: AS568-220.
Features
  • O-Ring — FSC 5331
  • Elongation Percentage: 125 MAXIMUM
  • Center Hole Diameter: 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
  • Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • Criticality Code Justification: ZZZW
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • 6 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-140-7665, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 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
NSN5331-00-140-7665
Primary Part NumberAS568-220
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
Elongation Percentage125 MAXIMUM
Center Hole Diameter1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
Departure From Cited DocumentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Criticality Code JustificationZZZW
MaterialRUBBER FLUOROCARBON CLASS FPM
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-087-6747 INTERCHANGEABLE
O-Ring
5331-00-166-84112-220V0747-75 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-536-68352-220 N674-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-01-533-6603 INTERCHANGEABLE
O-Ring
5331-01-654-6628AS568-220 INTERCHANGEABLE
O-Ring
Apple Rubber Products, Inc. Dba Apple Rubber Products Inc
Cross-Reference Index
Part NumberManufacturer
AS568-220 Sae International Dba Sae International (USA)
AS568-220CP Sae International Dba Sae International (USA)
AS568-220CP Naval Inventory Control Point Mechanicsburg (USA)
NAS1594-220 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MIL-R-83248/2-220 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS1594-220CP Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5331-00-087-6747INTERCHANGEABLE
O-RING
5331-00-166-8411INTERCHANGEABLE
O-RING
2-220V0747-75
5331-00-536-6835INTERCHANGEABLE
O-RING
2-220 N674-70
5331-01-533-6603INTERCHANGEABLE
O-RING
5331-01-654-6628INTERCHANGEABLE
O-RING
AS568-220

Frequently Asked Questions

What is NSN 5331-00-140-7665?

NSN 5331-00-140-7665 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-140-7665?

NSN 5331-00-140-7665 has 6 cross-referenced part numbers: AS568-220 (Sae International Dba Sae International), AS568-220CP (Sae International Dba Sae International), AS568-220CP (Naval Inventory Control Point Mechanicsburg), NAS1594-220 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MIL-R-83248/2-220 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5331-00-140-7665?

There are 5 known substitutes for 5331-00-140-7665: 5331-00-087-6747, 5331-00-166-8411, 5331-00-536-6835 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS568-220?

Key specifications for AS568-220: Elongation Percentage: 125 MAXIMUM; Center Hole Diameter: 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Criticality Code Justification: ZZZW. 6 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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