PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65145-1O-Ring

Tennant Company · NSN 5331-01-508-4406 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-508-4406 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-508-4406. Primary manufacturer part number: 65145-1.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SYNTHETIC
  • Center Hole Diameter: 3.060 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.069 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Tennant Company
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-508-4406, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Tennant Company. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5331-01-508-4406
Primary Part Number65145-1
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerTennant Company
StatusACTIVE
MaterialRUBBER SYNTHETIC
Center Hole Diameter3.060 INCHES NOMINAL IN
Cross-Sectional Height0.069 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5340-01-408-3303 INTERCHANGEABLE
Button,plug
Cross-Reference Index
Part NumberManufacturer
65145-1 Tennant Company (USA)
Related Parts
5340-01-408-3303INTERCHANGEABLE
BUTTON,PLUG

Frequently Asked Questions

What is NSN 5331-01-508-4406?

NSN 5331-01-508-4406 is a O-Ring, manufactured by Tennant Company, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-508-4406?

NSN 5331-01-508-4406 has 1 cross-referenced part number: 65145-1 (Tennant Company).

What NSN replaces 5331-01-508-4406?

There is 1 known substitute for 5331-01-508-4406: 5340-01-408-3303. Verify interchangeability with system specifications before substitution.

What are the specifications of 65145-1?

Key specifications for 65145-1: Material: RUBBER SYNTHETIC; Center Hole Diameter: 3.060 INCHES NOMINAL IN; Cross-Sectional Height: 0.069 INCHES NOMINAL IN; Special Features: USED WITH (59500) HYD PUMP P/N 369887 TO REPLACE HYD PUMP P/N 74163. 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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