PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-40201Shielding Gasket,electronic

Technical Wire Products, Llc Dba Twp · NSN 5999-00-161-0620 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-161-0620 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-161-0620. Primary manufacturer part number: 20-40201.
Features
  • Shielding Gasket,electronic — FSC 5999
  • Aperture Diameter: 3.305 INCHES NOMINAL IN
  • Style Designator: CIRCULAR
  • Material Document and Classification: UNABLE TO DECODE
  • Outside Diameter: 3.420 INCHES NOMINAL IN
  • Cross Section Outside Diameter: 0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
  • Surface Treatment: UNABLE TO DECODE
  • Cross-Sectional Shape Style: EMI
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Shielding Gasket,electronic, cataloged under National Stock Number 5999-00-161-0620, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Technical Wire Products, Llc Dba Twp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-161-0620
Primary Part Number20-40201
Item NameShielding Gasket,electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTechnical Wire Products, Llc Dba Twp
StatusACTIVE
Aperture Diameter3.305 INCHES NOMINAL IN
Style DesignatorCIRCULAR
Material Document and ClassificationUNABLE TO DECODE
Outside Diameter3.420 INCHES NOMINAL IN
Cross Section Outside Diameter0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
Surface TreatmentUNABLE TO DECODE
Cross-Sectional Shape StyleEMI
Aperture Diameter3.305 INCHES NOMINAL IN
Style DesignatorCIRCULAR
Material Document and ClassificationUNABLE TO DECODE
Outside Diameter3.420 INCHES NOMINAL IN
Cross Section Outside Diameter0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
Surface TreatmentUNABLE TO DECODE
Cross-Sectional Shape StyleEMI
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 5
5330-00-019-6340204-020-1 INTERCHANGEABLE
Retainer,packing
Aerocontrolex Group, Inc.
5999-00-238-62162864294 INTERCHANGEABLE
Contact,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-00-559-6182211-7377 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
5962-01-067-4646 INTERCHANGEABLE
Microcircuit,linear
5330-01-068-5445502051 INTERCHANGEABLE
Seal,plain Encased
Vanseal Corp
Cross-Reference Index
Part NumberManufacturer
20-40201 Technical Wire Products, Llc Dba Twp (USA)
50205-1 American Business Alliance, Inc. Dba Omni Wave (USA)
0120-1000-0010 Tech Etch Inc (USA)
30-01330 Technical Wire Products, Llc Dba Twp (USA)
Related Parts
5330-00-019-6340INTERCHANGEABLE
RETAINER,PACKING
204-020-1
5999-00-238-6216INTERCHANGEABLE
CONTACT,ELECTRICAL
2864294
5331-00-559-6182INTERCHANGEABLE
O-RING
211-7377
5962-01-067-4646INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5330-01-068-5445INTERCHANGEABLE
SEAL,PLAIN ENCASED
502051

Frequently Asked Questions

What is NSN 5999-00-161-0620?

NSN 5999-00-161-0620 is a Shielding Gasket,electronic, manufactured by Technical Wire Products, Llc Dba Twp, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-161-0620?

NSN 5999-00-161-0620 has 4 cross-referenced part numbers: 20-40201 (Technical Wire Products, Llc Dba Twp), 50205-1 (American Business Alliance, Inc. Dba Omni Wave), 0120-1000-0010 (Tech Etch Inc), 30-01330 (Technical Wire Products, Llc Dba Twp).

What NSN replaces 5999-00-161-0620?

There are 5 known substitutes for 5999-00-161-0620: 5330-00-019-6340, 5999-00-238-6216, 5331-00-559-6182 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-40201?

Key specifications for 20-40201: Aperture Diameter: 3.305 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: UNABLE TO DECODE; Outside Diameter: 3.420 INCHES NOMINAL IN. 14 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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