PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-445 N0674-70O-Ring

Parker-Hannifin Corp Div O-Ring Division · NSN 5331-01-066-4456 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-066-4456 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-066-4456. Primary manufacturer part number: 2-445 N0674-70.
Features
  • O-Ring — FSC 5331
  • Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Center Hole Diameter: 7.945 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN
  • Outside Diameter: 8.468 INCHES MINIMUM AND 8.582 INCHES MAXIMUM IN
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Criticality Code Justification: FEAT
  • Elongation Percentage: 331 MAXIMUM
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 5331-01-066-4456, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-066-4456
Primary Part Number2-445 N0674-70
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker-Hannifin Corp Div O-Ring Division
StatusACTIVE
Test Data Document81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Center Hole Diameter7.945 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN
Outside Diameter8.468 INCHES MINIMUM AND 8.582 INCHES MAXIMUM IN
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Criticality Code JustificationFEAT
Elongation Percentage331 MAXIMUM
Cross-Sectional Height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Temp Rating-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-007-6116 INTERCHANGEABLE
O-Ring
5331-00-044-7072458090-5 INTERCHANGEABLE
O-Ring
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
2-445N674-70 Parker-Hannifin Corp Div O-Ring Division (USA)
2-445 N0674-70 PRIMARY Parker-Hannifin Corp Div O-Ring Division (USA)
Related Parts
5331-00-007-6116INTERCHANGEABLE
O-RING
5331-00-044-7072INTERCHANGEABLE
O-RING
458090-5

Frequently Asked Questions

What is NSN 5331-01-066-4456?

NSN 5331-01-066-4456 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-066-4456?

NSN 5331-01-066-4456 has 2 cross-referenced part numbers: 2-445N674-70 (Parker-Hannifin Corp Div O-Ring Division), 2-445 N0674-70 (Parker-Hannifin Corp Div O-Ring Division).

What NSN replaces 5331-01-066-4456?

There are 2 known substitutes for 5331-01-066-4456: 5331-00-007-6116, 5331-00-044-7072. Verify interchangeability with system specifications before substitution.

What are the specifications of 2-445 N0674-70?

Key specifications for 2-445 N0674-70: Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Special Features: CERTIFIED FREE FROM MERCURY CONTAMINATION; Center Hole Diameter: 7.945 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN. 10 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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