PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20154Shielding Gasket,electronic

Ocean Technology Inc · NSN 5999-01-231-1260 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-231-1260 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-231-1260. Primary manufacturer part number: 20154.
Features
  • Shielding Gasket,electronic — FSC 5999
  • Environmental Protection Material Location: THROUGHOUT SEALING GASKET
  • Hole Diameter: 0.156 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.030 INCHES NOMINAL IN
  • Aperture Length: 0.516 INCHES NOMINAL IN
  • Style Designator: NON CIRCULAR
  • Material: UNABLE TO DECODE
  • Material Document and Classification: UNABLE TO DECODE
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 5999-01-231-1260, 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 Ocean Technology Inc. Government technical data includes 24 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-231-1260
Primary Part Number20154
Item NameShielding Gasket,electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerOcean Technology Inc
StatusACTIVE
Environmental Protection Material LocationTHROUGHOUT SEALING GASKET
Hole Diameter0.156 INCHES NOMINAL IN
Cross-Sectional Thickness0.030 INCHES NOMINAL IN
Aperture Length0.516 INCHES NOMINAL IN
Style DesignatorNON CIRCULAR
MaterialUNABLE TO DECODE
Material Document and ClassificationUNABLE TO DECODE
MaterialUNABLE TO DECODE
Aperture Width0.516 INCHES NOMINAL IN
Material Document and ClassificationUNABLE TO DECODE
Inside Corner Radius0.031 INCHES NOMINAL IN
Cross-Sectional Shape StyleMETAL AND SYNTHETIC RUBBER
Environmental Protection Material LocationTHROUGHOUT SEALING GASKET
Hole Diameter0.156 INCHES NOMINAL IN
Cross-Sectional Thickness0.030 INCHES NOMINAL IN
Aperture Length0.516 INCHES NOMINAL IN
Style DesignatorNON CIRCULAR
MaterialUNABLE TO DECODE
Material Document and ClassificationUNABLE TO DECODE
MaterialUNABLE TO DECODE
Aperture Width0.516 INCHES NOMINAL IN
Material Document and ClassificationUNABLE TO DECODE
Inside Corner Radius0.031 INCHES NOMINAL IN
Cross-Sectional Shape StyleMETAL AND SYNTHETIC RUBBER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 9
5950-00-135-078161390 INTERCHANGEABLE
Transformer,power
Instruments and Flight Research, Inc.
4730-00-200-341220154 INTERCHANGEABLE
Connector Assembly
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5133-00-228-1398 INTERCHANGEABLE
Drill,twist
5935-01-110-32075M1892-001 INTERCHANGEABLE
Connector,plug,electrical
The Boeing Company Div Defense
4820-01-211-093920154G11M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-265-041120154C01S1661 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4920-01-299-028320154 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
6105-01-364-1721 INTERCHANGEABLE
Motor,alternating Current
5975-01-699-13442015-4 INTERCHANGEABLE
Conduit,nonmetallic,flexible
Air/flex Industries, Inc. Dba Air Flex Industries Inc
Cross-Reference Index
Part NumberManufacturer
20154 Ocean Technology Inc (USA)
Related Parts
5950-00-135-0781INTERCHANGEABLE
TRANSFORMER,POWER
61390
4730-00-200-3412INTERCHANGEABLE
CONNECTOR ASSEMBLY
20154
5133-00-228-1398INTERCHANGEABLE
DRILL,TWIST
5935-01-110-3207INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5M1892-001
4820-01-211-0939INTERCHANGEABLE
VALVE,SAFETY RELIEF
20154G11M
4820-01-265-0411INTERCHANGEABLE
VALVE,SAFETY RELIEF
20154C01S1661
4920-01-299-0283INTERCHANGEABLE
TEST PROGRAM SET
20154
6105-01-364-1721INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5975-01-699-1344INTERCHANGEABLE
CONDUIT,NONMETALLIC,FLEXIBLE
2015-4

Frequently Asked Questions

What is NSN 5999-01-231-1260?

NSN 5999-01-231-1260 is a Shielding Gasket,electronic, manufactured by Ocean Technology Inc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-231-1260?

NSN 5999-01-231-1260 has 1 cross-referenced part number: 20154 (Ocean Technology Inc).

What NSN replaces 5999-01-231-1260?

There are 9 known substitutes for 5999-01-231-1260: 5950-00-135-0781, 4730-00-200-3412, 5133-00-228-1398 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20154?

Key specifications for 20154: Environmental Protection Material Location: THROUGHOUT SEALING GASKET; Hole Diameter: 0.156 INCHES NOMINAL IN; Cross-Sectional Thickness: 0.030 INCHES NOMINAL IN; Aperture Length: 0.516 INCHES NOMINAL IN. 28 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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