PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ZZ-R-765CLIIBGR70/AS568-143O-Ring

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-01-228-0605 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-228-0605 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-228-0605. Primary manufacturer part number: ZZ-R-765CLIIBGR70/AS568-143.
Features
  • O-Ring — FSC 5331
  • Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Specification/standard Data: 81349-AA55801-143D7 GOVERNMENT SPECIFICATION
  • Material Document and Classification: ZZ-R-765,CL 2B,GR 70 FED SPEC SINGLE MATERIAL RESPONSE
  • Peripheral Diameter: 2.641 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Material: RUBBER
  • Center Hole Diameter: 2.415 INCHES MINIMUM AND 2.455 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-228-0605, 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 8 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
NSN5331-01-228-0605
Primary Part NumberZZ-R-765CLIIBGR70/AS568-143
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
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Specification/standard Data81349-AA55801-143D7 GOVERNMENT SPECIFICATION
Material Document and ClassificationZZ-R-765,CL 2B,GR 70 FED SPEC SINGLE MATERIAL RESPONSE
Peripheral Diameter2.641 INCHES NOMINAL IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
MaterialRUBBER
Center Hole Diameter2.415 INCHES MINIMUM AND 2.455 INCHES MAXIMUM IN
Criticality Code JustificationZZZW
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-137-3293 INTERCHANGEABLE
O-Ring
5331-01-321-7194 INTERCHANGEABLE
O-Ring
5331-01-475-6900 INTERCHANGEABLE
O-Ring
5331-01-610-5151 INTERCHANGEABLE
O-Ring
5331-01-622-7481 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
ZZ-R-765CLIIBGR70/AS568-143 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A-A-55801 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA55801-143D7 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ZZ-R-765 CLIIB GR70 ARP568-143 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
31756,PC.7 Tate Andale, Llc (USA)
216-5007719 PC8 Naval Ship Systems Command (USA)
Related Parts
5331-00-137-3293INTERCHANGEABLE
O-RING
5331-01-321-7194INTERCHANGEABLE
O-RING
5331-01-475-6900INTERCHANGEABLE
O-RING
5331-01-610-5151INTERCHANGEABLE
O-RING
5331-01-622-7481INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-01-228-0605?

NSN 5331-01-228-0605 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 5331-01-228-0605?

NSN 5331-01-228-0605 has 6 cross-referenced part numbers: ZZ-R-765CLIIBGR70/AS568-143 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A-A-55801 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA55801-143D7 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ZZ-R-765 CLIIB GR70 ARP568-143 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 31756,PC.7 (Tate Andale, Llc) and 1 more.

What NSN replaces 5331-01-228-0605?

There are 5 known substitutes for 5331-01-228-0605: 5331-00-137-3293, 5331-01-321-7194, 5331-01-475-6900 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ZZ-R-765CLIIBGR70/AS568-143?

Key specifications for ZZ-R-765CLIIBGR70/AS568-143: Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Specification/standard Data: 81349-AA55801-143D7 GOVERNMENT SPECIFICATION; Material Document and Classification: ZZ-R-765,CL 2B,GR 70 FED SPEC SINGLE MATERIAL RESPONSE; Peripheral Diameter: 2.641 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com