PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40502Shielding Gasket,electronic

Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit · NSN 5999-01-371-6564 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-371-6564 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-371-6564. Primary manufacturer part number: 40502.
Features
  • Shielding Gasket,electronic — FSC 5999
  • Environmental Protection Material Location: THROUGHOUT RF SHIELDING GASKET
  • Aperture Diameter: 2.057 INCHES MINIMUM AND 2.067 INCHES MAXIMUM IN
  • Bolt Hole Quantity: 4
  • Cross-Sectional Height: 0.037 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: EMI
  • Style Designator: NON-CIRCULAR
  • Surface Treatment: UNABLE TO DECODE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-371-6564, 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 Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit. Government technical data includes 18 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-371-6564
Primary Part Number40502
Item NameShielding Gasket,electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTransistor Devices Inc Div Astrodyne Tdi High Power Business Unit
StatusACTIVE
Environmental Protection Material LocationTHROUGHOUT RF SHIELDING GASKET
Aperture Diameter2.057 INCHES MINIMUM AND 2.067 INCHES MAXIMUM IN
Bolt Hole Quantity4
Cross-Sectional Height0.037 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
Cross-Sectional Shape StyleEMI
Style DesignatorNON-CIRCULAR
Surface TreatmentUNABLE TO DECODE
Hole Diameter1.725 INCHES MINIMUM AND 1.735 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationUNABLE TO DECODE
Environmental Protection Material LocationTHROUGHOUT RF SHIELDING GASKET
Aperture Diameter2.057 INCHES MINIMUM AND 2.067 INCHES MAXIMUM IN
Bolt Hole Quantity4
Cross-Sectional Height0.037 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
Cross-Sectional Shape StyleEMI
Style DesignatorNON-CIRCULAR
Surface TreatmentUNABLE TO DECODE
Hole Diameter1.725 INCHES MINIMUM AND 1.735 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 9
1315-00-028-4669 INTERCHANGEABLE
Cartridge,75 Millimeter
5930-00-190-6997 INTERCHANGEABLE
Push Button
3455-01-044-4147 INTERCHANGEABLE
Cutter,milling,end
5985-01-056-103340502 INTERCHANGEABLE
Switch,waveguide
Waveline Inc
4730-01-254-29924050-2 INTERCHANGEABLE
Coupling Half,quick Disconnect
Parker-Hannifin Corporation Div Quick Coupling Division
5945-01-254-578362313 INTERCHANGEABLE
Relay,electromagnetic
Getinge Usa Inc
5307-01-364-74924050-2 INTERCHANGEABLE
Stud,ball
Eaton Aerospace Llc Sterer Engineering Morgan Actuators
6515-01-420-2320 INTERCHANGEABLE
Pad,protective,heel
4520-01-539-718640502 INTERCHANGEABLE
Wheel Retraction As
Hdt Expeditionary Systems Inc
Cross-Reference Index
Part NumberManufacturer
40502 PRIMARY Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit (USA)
ESSCG-B-28-0 Spira Manufacturing Corporation Dba Spira Manufacturing Corp (USA)
Related Parts
1315-00-028-4669INTERCHANGEABLE
CARTRIDGE,75 MILLIMETER
5930-00-190-6997INTERCHANGEABLE
PUSH BUTTON
3455-01-044-4147INTERCHANGEABLE
CUTTER,MILLING,END
5985-01-056-1033INTERCHANGEABLE
SWITCH,WAVEGUIDE
40502
4730-01-254-2992INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4050-2
5945-01-254-5783INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
62313
5307-01-364-7492INTERCHANGEABLE
STUD,BALL
4050-2
6515-01-420-2320INTERCHANGEABLE
PAD,PROTECTIVE,HEEL
4520-01-539-7186INTERCHANGEABLE
WHEEL RETRACTION AS
40502

Frequently Asked Questions

What is NSN 5999-01-371-6564?

NSN 5999-01-371-6564 is a Shielding Gasket,electronic, manufactured by Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-371-6564?

NSN 5999-01-371-6564 has 2 cross-referenced part numbers: 40502 (Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit), ESSCG-B-28-0 (Spira Manufacturing Corporation Dba Spira Manufacturing Corp).

What NSN replaces 5999-01-371-6564?

There are 9 known substitutes for 5999-01-371-6564: 1315-00-028-4669, 5930-00-190-6997, 3455-01-044-4147 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40502?

Key specifications for 40502: Environmental Protection Material Location: THROUGHOUT RF SHIELDING GASKET; Aperture Diameter: 2.057 INCHES MINIMUM AND 2.067 INCHES MAXIMUM IN; Overall Width: 2.292 INCHES MINIMUM AND 2.332 INCHES MAXIMUM IN; Bolt Hole Quantity: 4. 22 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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