PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21890Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-066-1269 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-066-1269 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-066-1269. Primary manufacturer part number: 21890.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: SQUARE
  • Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
  • Material: STEEL CASE
  • Surface Treatment: PLASTIC CASE
  • Accommodated Shaft Diameter: 2.188 INCHES NOMINAL IN
  • Outside Diameter: 3.355 INCHES NOMINAL IN
  • Housing Bore Diameter: 3.350 INCHES NOMINAL IN
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 5330-00-066-1269, 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 10 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-066-1269
Primary Part Number21890
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Case StyleSQUARE
Temp Rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
MaterialSTEEL CASE
Surface TreatmentPLASTIC CASE
Accommodated Shaft Diameter2.188 INCHES NOMINAL IN
Outside Diameter3.355 INCHES NOMINAL IN
Housing Bore Diameter3.350 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Seal Width0.454 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5305-00-213-034099121890 INTERCHANGEABLE
Setscrew
Alfa Laval Inc
5340-00-570-3600PLGA2810010A INTERCHANGEABLE
Plug Assembly,sealing
The Lee Co Dba the Lee Co
1040-00-938-897054A50A105 INTERCHANGEABLE
Wiper,nozzle
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5962-01-098-2835 INTERCHANGEABLE
Microcircuit,digital
5962-01-222-2827 INTERCHANGEABLE
Microcircuit,digital
5962-01-222-2828AM27S32DM INTERCHANGEABLE
Microcircuit,digital
Advanced Micro Devices Inc Dba AMD Austin
5962-01-222-2829 INTERCHANGEABLE
Microcircuit,digital
5962-01-222-2830 INTERCHANGEABLE
Microcircuit,digital
5962-01-222-2831 INTERCHANGEABLE
Microcircuit,digital
5950-01-411-1434232860-2 INTERCHANGEABLE
Transformer,power
Cubic Defense Applications, Inc.
Cross-Reference Index
Part NumberManufacturer
21890 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
Related Parts
5305-00-213-0340INTERCHANGEABLE
SETSCREW
99121890
5340-00-570-3600INTERCHANGEABLE
PLUG ASSEMBLY,SEALING
PLGA2810010A
1040-00-938-8970INTERCHANGEABLE
WIPER,NOZZLE
54A50A105
5962-01-098-2835INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-222-2827INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-222-2828INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
AM27S32DM
5962-01-222-2829INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-222-2830INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-222-2831INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5950-01-411-1434INTERCHANGEABLE
TRANSFORMER,POWER
232860-2

Frequently Asked Questions

What is NSN 5330-00-066-1269?

NSN 5330-00-066-1269 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 5330-00-066-1269?

NSN 5330-00-066-1269 has 2 cross-referenced part numbers: 21890 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).

What NSN replaces 5330-00-066-1269?

There are 10 known substitutes for 5330-00-066-1269: 5305-00-213-0340, 5340-00-570-3600, 1040-00-938-8970 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21890?

Key specifications for 21890: Case Style: SQUARE; Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF; Material: STEEL CASE; Surface Treatment: PLASTIC CASE. 10 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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