PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18668Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-496-0801 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-496-0801 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-496-0801. Primary manufacturer part number: 18668.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Material: STEEL CASE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Case Style: SQUARE
  • Housing Bore Diameter: 2.750 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-496-0801, 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 9 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-496-0801
Primary Part Number18668
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Seal Width0.500 INCHES NOMINAL IN
Sealing Element StyleANGULAR
MaterialSTEEL CASE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Case StyleSQUARE
Housing Bore Diameter2.750 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Temp Rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
Accommodated Shaft Diameter1.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-00-054-6866 INTERCHANGEABLE
O-Ring
2915-00-122-661039-10113 INTERCHANGEABLE
Filter Element,fluid
Hydro-Aire Aerospace Corp
6145-00-578-6076 INTERCHANGEABLE
Wire,electrical
Cross-Reference Index
Part NumberManufacturer
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
18668 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
5331-00-054-6866INTERCHANGEABLE
O-RING
2915-00-122-6610INTERCHANGEABLE
FILTER ELEMENT,FLUID
39-10113
6145-00-578-6076INTERCHANGEABLE
WIRE,ELECTRICAL

Frequently Asked Questions

What is NSN 5330-00-496-0801?

NSN 5330-00-496-0801 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-496-0801?

NSN 5330-00-496-0801 has 2 cross-referenced part numbers: 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 18668 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-00-496-0801?

There are 3 known substitutes for 5330-00-496-0801: 5331-00-054-6866, 2915-00-122-6610, 6145-00-578-6076. Verify interchangeability with system specifications before substitution.

What are the specifications of 18668?

Key specifications for 18668: Seal Width: 0.500 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Material: STEEL CASE; Material: RUBBER SYNTHETIC SEALING ELEMENT. 9 total characteristics are documented in the Federal Logistics Information System.

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