PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

663043R91Seal,plain Encased

Navistar Intl Corp Truck Br Ohio Plant · NSN 5330-00-891-6680 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-891-6680 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-891-6680. Primary manufacturer part number: 663043R91.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.625 INCHES NOMINAL IN
  • Material: LEATHER SEALING ELEMENT A
  • Case Style: SQUARE
  • Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT
  • Sealing Element Style: ANGULAR
  • Housing Bore Diameter: 5.125 INCHES NOMINAL IN
  • Material: WOOL SEALING ELEMENT B
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather Sealing Element a construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-891-6680, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-891-6680
Primary Part Number663043R91
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNavistar Intl Corp Truck Br Ohio Plant
StatusCANCELLED
Seal Width0.625 INCHES NOMINAL IN
MaterialLEATHER SEALING ELEMENT A
Case StyleSQUARE
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Sealing Element StyleANGULAR
Housing Bore Diameter5.125 INCHES NOMINAL IN
MaterialWOOL SEALING ELEMENT B
Accommodated Shaft Diameter3.875 INCHES NOMINAL IN
Temp Rating-65.0 CELSIUS AND 200.0 CELSIUS DEGC
Attachment MethodCEMENTED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5820-00-018-8679SM-D-698229 INTERCHANGEABLE
Amplifier-Frequency Multiplier
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5305-00-068-05019415796 INTERCHANGEABLE
Screw,cap,hexagon Head
General Motors Corp
3110-00-151-8615495AX INTERCHANGEABLE
Cone and Rollers,tapered Roller
Rbc Bearings Incorporated Div West Trenton Division
6150-01-554-824138706 INTERCHANGEABLE
Wiring Harness
Midcon Cables Co., Inc.
5305-01-615-455738706 INTERCHANGEABLE
Screw,cap,hexagon Head
Fastenal Company Dba Fastenal Co
5330-01-681-912038706 INTERCHANGEABLE
Retainer,seal
Industrial Technologies and Services Llc
Cross-Reference Index
Part NumberManufacturer
663043R91 PRIMARY Navistar Intl Corp Truck Br Ohio Plant (USA)
455547 Federal-Mogul Corp Government Sales Dept (USA)
455547 Federal-Mogul Corp Chassis Products Div (USA)
38706 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
65179R91 PRIMARY Navistar Intl Corp Truck Br Ohio Plant (USA)
65179R91 Navistar International Corporation Dba Navistar (USA)
663043R91 Navistar International Corporation Dba Navistar (USA)
Related Parts
5820-00-018-8679INTERCHANGEABLE
AMPLIFIER-FREQUENCY MULTIPLIER
SM-D-698229
5305-00-068-0501INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
9415796
3110-00-151-8615INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
495AX
6150-01-554-8241INTERCHANGEABLE
WIRING HARNESS
38706
5305-01-615-4557INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
38706
5330-01-681-9120INTERCHANGEABLE
RETAINER,SEAL
38706

Frequently Asked Questions

What is NSN 5330-00-891-6680?

NSN 5330-00-891-6680 is a Seal,plain Encased, 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 5330-00-891-6680?

NSN 5330-00-891-6680 has 7 cross-referenced part numbers: 663043R91 (Navistar Intl Corp Truck Br Ohio Plant), 455547 (Federal-Mogul Corp Government Sales Dept), 455547 (Federal-Mogul Corp Chassis Products Div), 38706 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 65179R91 (Navistar Intl Corp Truck Br Ohio Plant) and 2 more.

What NSN replaces 5330-00-891-6680?

There are 6 known substitutes for 5330-00-891-6680: 5820-00-018-8679, 5305-00-068-0501, 3110-00-151-8615 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 663043R91?

Key specifications for 663043R91: Seal Width: 0.625 INCHES NOMINAL IN; Material: LEATHER SEALING ELEMENT A; Case Style: SQUARE; Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-891-6680 still in active supply?

NSN 5330-00-891-6680 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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