Overview
The Federal Mogul National Oil Seals 21992 is a rotary shaft seal engineered to maintain lubrication and prevent contamination in mechanical systems. These seals protect critical machinery components in industrial automation, motion control, and mechanical power transmission applications. Supplied as a lot of 5, this product offers value for maintenance programs and equipment replacement needs.
Key Features
- Rotary shaft seal design for dynamic sealing applications
- Keeps lubricants in place and blocks external contaminants
- Precision-manufactured for consistent performance across industrial equipment
- Lot of 5 seals provides bulk replacement inventory
- New in box condition
- Standard National Oil Seals catalog part
Technical Specifications
- Part Number: 21992 (Reference: 473423)
- Outer Diameter (OD): 1.874 inches
- Inner Diameter (ID): 1.312 inches
- Width (Axial Height): 0.375 inches
- Seal Type: Rotary shaft seal
- Manufacturer: Federal Mogul (National brand)
- Quantity per Package: 5 seals
- Condition: New in box
Typical Applications
National Oil Seals 21992 are commonly used in:
- Industrial gearbox and transmission assemblies
- Motor and pump shaft sealing
- Mechanical power transmission equipment
- Automotive and light commercial vehicles
- Industrial automation and motion control systems
- Bearing and spindle protection
Compatibility & Replacements
Compatible With
- Industrial rotary equipment with 1.312-inch shaft diameters
- Gearboxes and transmissions requiring standard metric conversion seals
- Bearing assemblies and spindle housings
- Motor and pump mounting configurations
- Standard industrial mechanical systems (general purpose)
Replaces / Drop-In Replacement For
- Verify compatibility with your equipment manufacturer before ordering, as seal replacement requires precise dimension matching and shaft condition assessment.
Works With
- Federal Mogul National Oil Seals catalog products and cross-references
- Standard industrial lubricants and oils
- SKF and Timken seal cross-reference systems for alternative sourcing
- Most industrial equipment maintenance programs
