PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

286521C11Seal,plain

Navistar Intl Corp Truck Br Ohio Plant · NSN 5330-00-374-9444 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-374-9444 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-374-9444. Primary manufacturer part number: 286521C11.
Features
  • Seal,plain — FSC 5330
  • Material: STEEL SPRING
  • Construction: SOLID
  • Seal Width: 0.750 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 1.000 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Cross-Sectional Shape Style: SINGLE LIP
  • Housing Bore Diameter: 1.025 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Spring construction
General Description

The Seal,plain, cataloged under National Stock Number 5330-00-374-9444, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navistar Intl Corp Truck Br Ohio Plant. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-374-9444
Primary Part Number286521C11
Item NameSeal,plain
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNavistar Intl Corp Truck Br Ohio Plant
StatusCANCELLED
MaterialSTEEL SPRING
ConstructionSOLID
Seal Width0.750 INCHES NOMINAL IN
Accommodated Shaft Diameter1.000 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Cross-Sectional Shape StyleSINGLE LIP
Housing Bore Diameter1.025 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5961-00-702-3435 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
286521C11 PRIMARY Navistar Intl Corp Truck Br Ohio Plant (USA)
76616R11 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
35584 Eaton Corp Axle Div (USA)
76616R11 PRIMARY Navistar Intl Corp Truck Br Ohio Plant (USA)
286521C11 Navistar International Corporation Dba Navistar (USA)
76616R11 Navistar International Corporation Dba Navistar (USA)
Related Parts
5961-00-702-3435INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5330-00-374-9444?

NSN 5330-00-374-9444 is a Seal,plain, manufactured by Navistar Intl Corp Truck Br Ohio Plant, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-374-9444?

NSN 5330-00-374-9444 has 6 cross-referenced part numbers: 286521C11 (Navistar Intl Corp Truck Br Ohio Plant), 76616R11 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 35584 (Eaton Corp Axle Div), 76616R11 (Navistar Intl Corp Truck Br Ohio Plant), 286521C11 (Navistar International Corporation Dba Navistar) and 1 more.

What NSN replaces 5330-00-374-9444?

There is 1 known substitute for 5330-00-374-9444: 5961-00-702-3435. Verify interchangeability with system specifications before substitution.

What are the specifications of 286521C11?

Key specifications for 286521C11: Material: STEEL SPRING; Construction: SOLID; Seal Width: 0.750 INCHES NOMINAL IN; Accommodated Shaft Diameter: 1.000 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-374-9444 still in active supply?

NSN 5330-00-374-9444 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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