PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59588 CL 2B GR 70O-Ring

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 5331-01-423-1624 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-423-1624 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-423-1624. Primary manufacturer part number: A-A-59588 CL 2B GR 70.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.534 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
  • Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
  • Material: RUBBER SILICONE CLASS Q
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • 4 verified cross-references
  • Primary manufacturer: Federal Commercial Item Description Promulgated by General Services Administration Washington DC
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 5331-01-423-1624, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-423-1624
Primary Part NumberA-A-59588 CL 2B GR 70
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
Center Hole Diameter1.534 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN
Hardness Rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
MaterialRUBBER SILICONE CLASS Q
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-137-3293 INTERCHANGEABLE
O-Ring
5331-00-138-0063 INTERCHANGEABLE
O-Ring
5331-00-167-5117AS3209-129 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-006-8905AS568-129 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-155-3407 INTERCHANGEABLE
O-Ring
5330-01-423-0799AS568-129T INTERCHANGEABLE
Gasket
Dante Valve Company
Cross-Reference Index
Part NumberManufacturer
A-A-59588 CL 2B GR 70 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AS568-129 Sae International Dba Sae International (USA)
ZZ-R-765CL2BGR70/AS568-129 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS568-129 Society of Automotive Engineers Inc (USA)
Related Parts
5331-00-137-3293INTERCHANGEABLE
O-RING
5331-00-138-0063INTERCHANGEABLE
O-RING
5331-00-167-5117INTERCHANGEABLE
O-RING
AS3209-129
5331-01-006-8905INTERCHANGEABLE
O-RING
AS568-129
5331-01-155-3407INTERCHANGEABLE
O-RING
5330-01-423-0799INTERCHANGEABLE
GASKET
AS568-129T

Frequently Asked Questions

What is NSN 5331-01-423-1624?

NSN 5331-01-423-1624 is a O-Ring, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-423-1624?

NSN 5331-01-423-1624 has 4 cross-referenced part numbers: A-A-59588 CL 2B GR 70 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AS568-129 (Sae International Dba Sae International), ZZ-R-765CL2BGR70/AS568-129 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AS568-129 (Society of Automotive Engineers Inc).

What NSN replaces 5331-01-423-1624?

There are 6 known substitutes for 5331-01-423-1624: 5331-00-137-3293, 5331-00-138-0063, 5331-00-167-5117 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59588 CL 2B GR 70?

Key specifications for A-A-59588 CL 2B GR 70: Center Hole Diameter: 1.534 INCHES MINIMUM AND 1.564 INCHES MAXIMUM IN; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Material: RUBBER SILICONE CLASS Q; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 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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