PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

455191Seal,plain

The Timken Company Dba Timken Power Systems Ms · NSN 5330-01-721-6580 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-721-6580 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-721-6580. Primary manufacturer part number: 455191.
Features
  • Seal,plain — FSC 5330
  • Seal Width: 0.468 INCHES NOMINAL IN
  • Outside Diameter: 5.256 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: The Timken Company Dba Timken Power Systems Ms
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,plain, cataloged under National Stock Number 5330-01-721-6580, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Timken Company Dba Timken Power Systems Ms. Government technical data includes 2 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
NSN5330-01-721-6580
Primary Part Number455191
Item NameSeal,plain
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerThe Timken Company Dba Timken Power Systems Ms
StatusACTIVE
Seal Width0.468 INCHES NOMINAL IN
Outside Diameter5.256 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5910-00-822-3765 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Cross-Reference Index
Part NumberManufacturer
455191 PRIMARY The Timken Company Dba Timken Power Systems Ms (USA)
Related Parts
5910-00-822-3765INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR

Frequently Asked Questions

What is NSN 5330-01-721-6580?

NSN 5330-01-721-6580 is a Seal,plain, manufactured by The Timken Company Dba Timken Power Systems Ms, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-721-6580?

NSN 5330-01-721-6580 has 1 cross-referenced part number: 455191 (The Timken Company Dba Timken Power Systems Ms).

What NSN replaces 5330-01-721-6580?

There is 1 known substitute for 5330-01-721-6580: 5910-00-822-3765. Verify interchangeability with system specifications before substitution.

What are the specifications of 455191?

Key specifications for 455191: Seal Width: 0.468 INCHES NOMINAL IN; Outside Diameter: 5.256 INCHES NOMINAL IN; Special Features: MATERIAL: NITRILE; SHAFT SIZE: 3.937 INCHES; HOUSING BORE: 5.251 INCHES IN; Part Name Assigned by Controlling Agency: OIL SEAL. 4 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