PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18891Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-01-188-9391 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-188-9391 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-188-9391. Primary manufacturer part number: 18891.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 3.160 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 1.875 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Case Style: RECESSED
  • Seal Width: 0.482 INCHES NOMINAL IN
  • Material: RUBBER POLYACRYLATE CLASS ACM OVERALL
  • Outside Diameter: 3.165 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Polyacrylate Class Acm Overall construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-188-9391, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc. Dba Skf Aerospace Sealing Solutions. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-01-188-9391
Primary Part Number18891
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusCANCELLED
Housing Bore Diameter3.160 INCHES NOMINAL IN
Accommodated Shaft Diameter1.875 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Case StyleRECESSED
Seal Width0.482 INCHES NOMINAL IN
MaterialRUBBER POLYACRYLATE CLASS ACM OVERALL
Outside Diameter3.165 INCHES NOMINAL IN
Sealing Element StyleVERTICAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5935-00-518-809733-1889-1 INTERCHANGEABLE
Adapter,connector
Amphenol Corporation Div Amphenol Rf
3120-00-585-9735 INTERCHANGEABLE
Bearing,sleeve
5310-00-914-063718891 INTERCHANGEABLE
Washer,flat
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3020-01-112-192818891 INTERCHANGEABLE
Pulley,groove
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
4930-01-117-831999138427 INTERCHANGEABLE
Support,spring
Alfa Laval Inc
3615-01-248-945838427 INTERCHANGEABLE
Shredding Machine,paper
Fellowes Inc
6220-01-384-216310483-003 INTERCHANGEABLE
Light Assembly,indicator
Korry Electronics Co
Cross-Reference Index
Part NumberManufacturer
18891 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
38427 Dana Light Axle Products, Llc Dba Dana Light Axle Products (USA)
Related Parts
5935-00-518-8097INTERCHANGEABLE
ADAPTER,CONNECTOR
33-1889-1
3120-00-585-9735INTERCHANGEABLE
BEARING,SLEEVE
5310-00-914-0637INTERCHANGEABLE
WASHER,FLAT
18891
3020-01-112-1928INTERCHANGEABLE
PULLEY,GROOVE
18891
4930-01-117-8319INTERCHANGEABLE
SUPPORT,SPRING
99138427
3615-01-248-9458INTERCHANGEABLE
SHREDDING MACHINE,PAPER
38427
6220-01-384-2163INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
10483-003

Frequently Asked Questions

What is NSN 5330-01-188-9391?

NSN 5330-01-188-9391 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-01-188-9391?

NSN 5330-01-188-9391 has 2 cross-referenced part numbers: 18891 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 38427 (Dana Light Axle Products, Llc Dba Dana Light Axle Products).

What NSN replaces 5330-01-188-9391?

There are 7 known substitutes for 5330-01-188-9391: 5935-00-518-8097, 3120-00-585-9735, 5310-00-914-0637 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18891?

Key specifications for 18891: Housing Bore Diameter: 3.160 INCHES NOMINAL IN; Accommodated Shaft Diameter: 1.875 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Case Style: RECESSED. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-01-188-9391 still in active supply?

NSN 5330-01-188-9391 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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