PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20639Gasket

Avox Systems Inc Dba Avox Systems Inc · NSN 5330-00-684-5942 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-684-5942 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-684-5942. Primary manufacturer part number: 20639.
Features
  • Gasket — FSC 5330
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • Aperture Diameter: 0.562 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
  • Material: RUBBER CHLOROPRENE CLASS CR OVERALL
  • Style Designator: CIRCULAR
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Hardness Rating: 50.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MAXIMUM OVERALL
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Chloroprene Class Cr Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-684-5942, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 7 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-684-5942
Primary Part Number20639
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Outside Diameter0.750 INCHES NOMINAL IN
Aperture Diameter0.562 INCHES NOMINAL IN
Cross-Sectional Thickness0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
MaterialRUBBER CHLOROPRENE CLASS CR OVERALL
Style DesignatorCIRCULAR
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Hardness Rating50.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MAXIMUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6130-00-230-70966RS5GH26 INTERCHANGEABLE
Rectifier,metallic
Dean Technology Inc. Dba Cke
5133-00-266-9245 INTERCHANGEABLE
Drill,twist
4720-00-427-550820639 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5955-00-623-727120639 INTERCHANGEABLE
Oscillator,crystal Controlled
Sigma Tek, Inc.
5365-00-868-687620639 INTERCHANGEABLE
Shim
Cadillac Gage Textron Inc.
5935-01-234-7138MS3452W22-5P INTERCHANGEABLE
Connector,receptacle,electrical
Sae International Dba Sae International
1650-01-436-109220639 INTERCHANGEABLE
Holder,linear Actuator Piston Fi
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
4730-01-516-4813C20639 INTERCHANGEABLE
Coupling,hose
Hydrasearch Company, Llc
Cross-Reference Index
Part NumberManufacturer
20639 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
6130-00-230-7096INTERCHANGEABLE
RECTIFIER,METALLIC
6RS5GH26
5133-00-266-9245INTERCHANGEABLE
DRILL,TWIST
4720-00-427-5508INTERCHANGEABLE
HOSE,PREFORMED
20639
5955-00-623-7271INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
20639
5365-00-868-6876INTERCHANGEABLE
SHIM
20639
5935-01-234-7138INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
MS3452W22-5P
1650-01-436-1092INTERCHANGEABLE
HOLDER,LINEAR ACTUATOR PISTON FI
20639
4730-01-516-4813INTERCHANGEABLE
COUPLING,HOSE
C20639

Frequently Asked Questions

What is NSN 5330-00-684-5942?

NSN 5330-00-684-5942 is a Gasket, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-684-5942?

NSN 5330-00-684-5942 has 1 cross-referenced part number: 20639 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 5330-00-684-5942?

There are 8 known substitutes for 5330-00-684-5942: 6130-00-230-7096, 5133-00-266-9245, 4720-00-427-5508 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20639?

Key specifications for 20639: Outside Diameter: 0.750 INCHES NOMINAL IN; Aperture Diameter: 0.562 INCHES NOMINAL IN; Cross-Sectional Thickness: 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR OVERALL. 7 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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