PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A50383Boot,dust and Moisture Seal

Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc · NSN 5930-00-189-2400 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-189-2400 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-189-2400. Primary manufacturer part number: A50383.
Features
  • Boot,dust and Moisture Seal — FSC 5930
  • Style Designator: THRU-HOLE
  • Base Overall Length: 0.938 INCHES NOMINAL IN
  • Material: RUBBER SILICONE INSULATOR
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 0.906 INCHES NOMINAL IN
  • Criticality Code Justification: FEAT
  • Base Width: 0.938 INCHES NOMINAL IN
  • 3 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Insulator construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5930-00-189-2400, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-189-2400
Primary Part NumberA50383
Item NameBoot,dust and Moisture Seal
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerDucommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
StatusACTIVE
Style DesignatorTHRU-HOLE
Base Overall Length0.938 INCHES NOMINAL IN
MaterialRUBBER SILICONE INSULATOR
Center to Center Distance Between Mounting Facilities Parallel to Width0.906 INCHES NOMINAL IN
Criticality Code JustificationFEAT
Base Width0.938 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3020-00-203-1447SCB69581 INTERCHANGEABLE
Gear,spur
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3020-00-431-6344 INTERCHANGEABLE
Chain,roller
5935-00-477-1307SMC2015887-1 INTERCHANGEABLE
Connector Body,receptacle,electr
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2930-00-481-26988529 INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
5310-00-616-1330 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
A50383 PRIMARY Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA)
50383 Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA)
A50383 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
Related Parts
3020-00-203-1447INTERCHANGEABLE
GEAR,SPUR
SCB69581
3020-00-431-6344INTERCHANGEABLE
CHAIN,ROLLER
5935-00-477-1307INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
SMC2015887-1
2930-00-481-2698INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8529
5310-00-616-1330INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5930-00-189-2400?

NSN 5930-00-189-2400 is a Boot,dust and Moisture Seal, manufactured by Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-189-2400?

NSN 5930-00-189-2400 has 3 cross-referenced part numbers: A50383 (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc), 50383 (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc), A50383 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What NSN replaces 5930-00-189-2400?

There are 5 known substitutes for 5930-00-189-2400: 3020-00-203-1447, 3020-00-431-6344, 5935-00-477-1307 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A50383?

Key specifications for A50383: End Item Identification: CH-53 A/D/E, MH-53E, RH-53 HELICOPTERS. A; Style Designator: THRU-HOLE; Base Overall Length: 0.938 INCHES NOMINAL IN; Material: RUBBER SILICONE INSULATOR. 8 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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