PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21358Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-01-492-8164 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-492-8164 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-492-8164. Primary manufacturer part number: 21358.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 3.543 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 2.125 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Sealing Element Style: ANGULAR
  • Seal Width: 0.438 INCHES NOMINAL IN
  • Surface Treatment: PLASTIC CASE
  • Outside Diameter: 3.548 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-492-8164, 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 1 commercial cross-reference from 1 manufacturer, 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
NSN5330-01-492-8164
Primary Part Number21358
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Housing Bore Diameter3.543 INCHES NOMINAL IN
Accommodated Shaft Diameter2.125 INCHES NOMINAL IN
Case StyleSQUARE
Sealing Element StyleANGULAR
Seal Width0.438 INCHES NOMINAL IN
Surface TreatmentPLASTIC CASE
Outside Diameter3.548 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MaterialSTEEL CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6625-00-161-182621358 INTERCHANGEABLE
Ohmmeter
Avo Intl
3120-00-423-083221-358 INTERCHANGEABLE
Bearing,sleeve
Dresser Industries Inc Leroi Div
5905-00-475-05736017981 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
International Business Machines Corp Parts Order Center Dept E - 54
2910-00-570-96517041861 INTERCHANGEABLE
Carburetor,float
General Motors Llc Dba General Motors Llc
5950-01-072-225921358 INTERCHANGEABLE
Transformer,power
Elbitamerica, Inc.
5360-01-190-621521358 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5985-01-426-481721358 INTERCHANGEABLE
Mast Section
L3harris Technologies, Inc. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation
4820-01-514-865421358-1014-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
1005-01-542-746521358 INTERCHANGEABLE
Mount,sight,small Arms
Charles Reed Knight Jr Dba Knight's Armament Company
4810-01-545-078921358-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21358 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
6625-00-161-1826INTERCHANGEABLE
OHMMETER
21358
3120-00-423-0832INTERCHANGEABLE
BEARING,SLEEVE
21-358
5905-00-475-0573INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
6017981
2910-00-570-9651INTERCHANGEABLE
CARBURETOR,FLOAT
7041861
5950-01-072-2259INTERCHANGEABLE
TRANSFORMER,POWER
21358
5360-01-190-6215INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21358
5985-01-426-4817INTERCHANGEABLE
MAST SECTION
21358
4820-01-514-8654INTERCHANGEABLE
PISTON,VALVE
21358-1014-1
1005-01-542-7465INTERCHANGEABLE
MOUNT,SIGHT,SMALL ARMS
21358
4810-01-545-0789INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21358-001

Frequently Asked Questions

What is NSN 5330-01-492-8164?

NSN 5330-01-492-8164 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 5330-01-492-8164?

NSN 5330-01-492-8164 has 1 cross-referenced part number: 21358 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-01-492-8164?

There are 10 known substitutes for 5330-01-492-8164: 6625-00-161-1826, 3120-00-423-0832, 5905-00-475-0573 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21358?

Key specifications for 21358: Housing Bore Diameter: 3.543 INCHES NOMINAL IN; Accommodated Shaft Diameter: 2.125 INCHES NOMINAL IN; End Item Identification: CONS GROUND SUPPORT EQUIP.; Part Name Assigned by Controlling Agency: GREASE SEAL. 11 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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