PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40845-1Shielding Gasket,electronic

The Dewey Electronics Corporation · NSN 5999-00-421-5133 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-421-5133 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-421-5133. Primary manufacturer part number: 40845-1.
Features
  • Shielding Gasket,electronic — FSC 5999
  • Material: UNABLE TO DECODE
  • Material Document and Classification: UNABLE TO DECODE
  • Aperture Length: 11.375 INCHES NOMINAL IN
  • Material: UNABLE TO DECODE
  • Material Document and Classification: UNABLE TO DECODE
  • Center to Center Distance Between Bolt Holes Along Length: 3.250 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: MESH AND COMPOSITION
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Unable to Decode construction
General Description

The Shielding Gasket,electronic, cataloged under National Stock Number 5999-00-421-5133, 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 The Dewey Electronics Corporation. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-421-5133
Primary Part Number40845-1
Item NameShielding Gasket,electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerThe Dewey Electronics Corporation
StatusACTIVE
MaterialUNABLE TO DECODE
Material Document and ClassificationUNABLE TO DECODE
Aperture Length11.375 INCHES NOMINAL IN
MaterialUNABLE TO DECODE
Material Document and ClassificationUNABLE TO DECODE
Center to Center Distance Between Bolt Holes Along Length3.250 INCHES NOMINAL IN
Cross-Sectional Shape StyleMESH AND COMPOSITION
Minor Height0.125 INCHES NOMINAL IN
Bolt Hole Quantity10
Environmental Protection Material LocationAROUND RF SHIELDING GASKET OUTER PERIMETER
Outside Edge to Bolt Hole Center Distance Along Length0.188 INCHES NOMINAL IN
Aperture Width3.375 INCHES NOMINAL IN
Hole Diameter0.201 INCHES NOMINAL IN
Cross-Sectional Height0.125 INCHES NOMINAL IN
Outside Edge to Bolt Hole Center Distance Along Width0.188 INCHES NOMINAL IN
Style DesignatorNON-CIRCULAR
Minor Width0.125 INCHES NOMINAL IN
MaterialUNABLE TO DECODE
Material Document and ClassificationUNABLE TO DECODE
Aperture Length11.375 INCHES NOMINAL IN
MaterialUNABLE TO DECODE
Material Document and ClassificationUNABLE TO DECODE
Center to Center Distance Between Bolt Holes Along Length3.250 INCHES NOMINAL IN
Cross-Sectional Shape StyleMESH AND COMPOSITION
Minor Height0.125 INCHES NOMINAL IN
Bolt Hole Quantity10
Environmental Protection Material LocationAROUND RF SHIELDING GASKET OUTER PERIMETER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 6
5930-00-239-363340845-1 INTERCHANGEABLE
Switch,sensitive
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
5995-01-564-5305 INTERCHANGEABLE
Cable Assembly,special Purpose,e
5995-01-564-5318 INTERCHANGEABLE
Cable Assembly,special Purpose,e
5995-01-564-5327 INTERCHANGEABLE
Cable Assembly,radio Frequency
5995-01-564-5341 INTERCHANGEABLE
Cable Assembly,radio Frequency
6240-01-565-2140 INTERCHANGEABLE
Lamp,glow
Cross-Reference Index
Part NumberManufacturer
40845-1 Metal Textiles Corporation Dba Metal Textiles Div Electronic Shielding Group (USA)
40845-1 Technical Wire Products, Llc Dba Twp (USA)
40845-1 PRIMARY The Dewey Electronics Corporation (USA)
Related Parts
5930-00-239-3633INTERCHANGEABLE
SWITCH,SENSITIVE
40845-1
5995-01-564-5305INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5995-01-564-5318INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5995-01-564-5327INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
5995-01-564-5341INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
6240-01-565-2140INTERCHANGEABLE
LAMP,GLOW

Frequently Asked Questions

What is NSN 5999-00-421-5133?

NSN 5999-00-421-5133 is a Shielding Gasket,electronic, manufactured by The Dewey Electronics Corporation, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-421-5133?

NSN 5999-00-421-5133 has 3 cross-referenced part numbers: 40845-1 (Metal Textiles Corporation Dba Metal Textiles Div Electronic Shielding Group), 40845-1 (Technical Wire Products, Llc Dba Twp), 40845-1 (The Dewey Electronics Corporation).

What NSN replaces 5999-00-421-5133?

There are 6 known substitutes for 5999-00-421-5133: 5930-00-239-3633, 5995-01-564-5305, 5995-01-564-5318 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40845-1?

Key specifications for 40845-1: Material: UNABLE TO DECODE; Material Document and Classification: UNABLE TO DECODE; Aperture Length: 11.375 INCHES NOMINAL IN; Material: UNABLE TO DECODE. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com