PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

260-737-70O-Ring

Parker Hannifin Corporation Div O-Ring Division · NSN 5331-00-405-0798 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-405-0798 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-405-0798. Primary manufacturer part number: 260-737-70.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 6.461 INCHES MINIMUM AND 6.507 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
  • Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 5 verified cross-references
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 5331-00-405-0798, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-405-0798
Primary Part Number260-737-70
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker Hannifin Corporation Div O-Ring Division
StatusACTIVE
Center Hole Diameter6.461 INCHES MINIMUM AND 6.507 INCHES MAXIMUM IN
Material Document and ClassificationMIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Temp Rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
Hardness Rating65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-01-050-5024LS4629-38 INTERCHANGEABLE
O-Ring
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
260-737-70 PRIMARY Parker Hannifin Corporation Div O-Ring Division (USA)
N0304 2-260 PRIMARY Parker-Hannifin Corp Div O-Ring Division (USA)
2-260 N304-75 Parker Hannifin Gmbh O-Ring Division (DEU)
2-260N304-70 Parker-Hannifin Corp Div O-Ring Division (USA)
2533405-260 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5331-01-050-5024INTERCHANGEABLE
O-RING
LS4629-38

Frequently Asked Questions

What is NSN 5331-00-405-0798?

NSN 5331-00-405-0798 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-405-0798?

NSN 5331-00-405-0798 has 5 cross-referenced part numbers: 260-737-70 (Parker Hannifin Corporation Div O-Ring Division), N0304 2-260 (Parker-Hannifin Corp Div O-Ring Division), 2-260 N304-75 (Parker Hannifin Gmbh O-Ring Division), 2-260N304-70 (Parker-Hannifin Corp Div O-Ring Division), 2533405-260 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5331-00-405-0798?

There is 1 known substitute for 5331-00-405-0798: 5331-01-050-5024. Verify interchangeability with system specifications before substitution.

What are the specifications of 260-737-70?

Key specifications for 260-737-70: Center Hole Diameter: 6.461 INCHES MINIMUM AND 6.507 INCHES MAXIMUM IN; Material Document and Classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF. 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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