PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

87643-7505 ITEM 93Disc,drive,operator

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 3040-01-346-1433 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-346-1433 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-346-1433. Primary manufacturer part number: 87643-7505 ITEM 93.
Features
  • Disc,drive,operator — FSC 3040
  • General Characteristics Item Description: NICKEL COPPER,4.000 DIA,1.215 H.,0.750 TO 0.750 DIA SLOT,1.000 IS SQUARE HOLE
  • 3 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disc,drive,operator, cataloged under National Stock Number 3040-01-346-1433, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 1 verified specification, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-346-1433
Primary Part Number87643-7505 ITEM 93
Item NameDisc,drive,operator
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
General Characteristics Item DescriptionNICKEL COPPER,4.000 DIA,1.215 H.,0.750 TO 0.750 DIA SLOT,1.000 IS SQUARE HOLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3040-01-198-2688501-4675699 ITEM 1 INTERCHANGEABLE
Lever,manual Control
Naval Ship Systems Command
3040-01-198-2689501-4675699 ITEM 2 INTERCHANGEABLE
Lever,manual Control
Naval Ship Systems Command
3040-01-198-2690501-4675699 ITEM 3 INTERCHANGEABLE
Lever,manual Control
Naval Ship Systems Command
3040-01-198-2691501-4675699 ITEM 4 INTERCHANGEABLE
Lever,manual Control
Naval Ship Systems Command
2520-01-259-7476DM47520 ITEM 38 INTERCHANGEABLE
Universal Joint,vehicular
Electric Boat Corporation Div General Dynamics Electric Boat
2520-01-259-7477DM47520 ITEM 39 INTERCHANGEABLE
Universal Joint,vehicular
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-260-2611DM47520 ITEM 64 INTERCHANGEABLE
Disk,valve
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-261-014587643-7501 PC40 INTERCHANGEABLE
Stem,fluid Valve
Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-268-013187643-7505 ITEM 65 INTERCHANGEABLE
Lever,manual Control
Derbyshire Machine & Tool Co
Cross-Reference Index
Part NumberManufacturer
87643-7505 ITEM 93 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
501-4675699 ITEM 93 Naval Ship Systems Command (USA)
501-4675699 Naval Ship Systems Command (USA)
Related Parts
3040-01-198-2688INTERCHANGEABLE
LEVER,MANUAL CONTROL
501-4675699 ITEM 1
3040-01-198-2689INTERCHANGEABLE
LEVER,MANUAL CONTROL
501-4675699 ITEM 2
3040-01-198-2690INTERCHANGEABLE
LEVER,MANUAL CONTROL
501-4675699 ITEM 3
3040-01-198-2691INTERCHANGEABLE
LEVER,MANUAL CONTROL
501-4675699 ITEM 4
2520-01-259-7476INTERCHANGEABLE
UNIVERSAL JOINT,VEHICULAR
DM47520 ITEM 38
2520-01-259-7477INTERCHANGEABLE
UNIVERSAL JOINT,VEHICULAR
DM47520 ITEM 39
4820-01-260-2611INTERCHANGEABLE
DISK,VALVE
DM47520 ITEM 64
4820-01-261-0145INTERCHANGEABLE
STEM,FLUID VALVE
87643-7501 PC40
3040-01-268-0131INTERCHANGEABLE
LEVER,MANUAL CONTROL
87643-7505 ITEM 65

Frequently Asked Questions

What is NSN 3040-01-346-1433?

NSN 3040-01-346-1433 is a Disc,drive,operator, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-346-1433?

NSN 3040-01-346-1433 has 3 cross-referenced part numbers: 87643-7505 ITEM 93 (Electric Boat Corporation Div General Dynamics Electric Boat), 501-4675699 ITEM 93 (Naval Ship Systems Command), 501-4675699 (Naval Ship Systems Command).

What NSN replaces 3040-01-346-1433?

There are 9 known substitutes for 3040-01-346-1433: 3040-01-198-2688, 3040-01-198-2689, 3040-01-198-2690 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 87643-7505 ITEM 93?

Key specifications for 87643-7505 ITEM 93: End Item Identification: OPERATOR GEAR ASSEMBLY FOR TRIDENT SUBMARINE; General Characteristics Item Description: NICKEL COPPER,4.000 DIA,1.215 H.,0.750 TO 0.750 DIA SLOT,1.000 IS SQUARE HOLE. 2 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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