PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-22050O-Ring

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-00-612-3643 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-612-3643 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-612-3643. Primary manufacturer part number: MIL-DTL-22050.
Features
  • O-Ring — FSC 5331
  • Elongation Percentage: 150 MAXIMUM
  • Center Hole Diameter: 2.951 INCHES MINIMUM AND 2.999 INCHES MAXIMUM IN
  • Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM
  • Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
  • Outside Diameter: 3.395 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Ethylene-Propylene Class Epm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-612-3643, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 5 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-612-3643
Primary Part NumberMIL-DTL-22050
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Elongation Percentage150 MAXIMUM
Center Hole Diameter2.951 INCHES MINIMUM AND 2.999 INCHES MAXIMUM IN
MaterialRUBBER ETHYLENE-PROPYLENE CLASS EPM
Cross-Sectional Height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
Outside Diameter3.395 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5331-00-159-3476 INTERCHANGEABLE
O-Ring
5331-00-413-5191SAE-AS568 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-716-6416SAE-AS568-006 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-079-8154SAE AS568-343 SAEMS3205 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-089-6061AS568-008 SAE AMS3205 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-109-7498AS568-912/MIL-PRF-1149 TY1 CL5 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-135-7289AS568-461 SAEAMS-R-7362TYPE1 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-206-6122E0540 2-217 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-01-369-3571AS568-165 SAE AMS-P-5510 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-697-5021AMS-R-83285GR80/AS568-235 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-22050 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M22050-2-337 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS568-337MIL-G- 22050GR2 Zf Industrieantriebe Witten Gmbh (DEU)
SAE-AS568 Sae International Dba Sae International (USA)
AS568-337MILG22050GR2 Society of Automotive Engineers Inc (USA)
AS568-337MILG22050GR2 Sae International Dba Sae International (USA)
Related Parts
5331-00-159-3476INTERCHANGEABLE
O-RING
5331-00-413-5191INTERCHANGEABLE
O-RING
SAE-AS568
5331-00-716-6416INTERCHANGEABLE
O-RING
SAE-AS568-006
5331-01-079-8154INTERCHANGEABLE
O-RING
SAE AS568-343 SAEMS3205
5331-01-089-6061INTERCHANGEABLE
O-RING
AS568-008 SAE AMS3205
5331-01-109-7498INTERCHANGEABLE
O-RING
AS568-912/MIL-PRF-1149 TY1 CL5
5331-01-135-7289INTERCHANGEABLE
O-RING
AS568-461 SAEAMS-R-7362TYPE1
5331-01-206-6122INTERCHANGEABLE
O-RING
E0540 2-217
5331-01-369-3571INTERCHANGEABLE
O-RING
AS568-165 SAE AMS-P-5510
5331-01-697-5021INTERCHANGEABLE
O-RING
AMS-R-83285GR80/AS568-235

Frequently Asked Questions

What is NSN 5331-00-612-3643?

NSN 5331-00-612-3643 is a O-Ring, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-612-3643?

NSN 5331-00-612-3643 has 6 cross-referenced part numbers: MIL-DTL-22050 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M22050-2-337 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AS568-337MIL-G- 22050GR2 (Zf Industrieantriebe Witten Gmbh), SAE-AS568 (Sae International Dba Sae International), AS568-337MILG22050GR2 (Society of Automotive Engineers Inc) and 1 more.

What NSN replaces 5331-00-612-3643?

There are 10 known substitutes for 5331-00-612-3643: 5331-00-159-3476, 5331-00-413-5191, 5331-00-716-6416 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-22050?

Key specifications for MIL-DTL-22050: Elongation Percentage: 150 MAXIMUM; Center Hole Diameter: 2.951 INCHES MINIMUM AND 2.999 INCHES MAXIMUM IN; Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM; Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. 5 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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