PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

87643-7501 PC40Stem,fluid Valve

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4820-01-261-0145 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-261-0145 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-261-0145. Primary manufacturer part number: 87643-7501 PC40.
Features
  • Stem,fluid Valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-261-0145, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. This item has 3 commercial cross-references 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.

Catalog Facts
Item NameStem,fluid Valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersElectric Boat Corporation Div General Dynamics Electric Boat (CAGE 96169)
Technical Specifications
ParameterValue
NSN4820-01-261-0145
Primary Part Number87643-7501 PC40
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
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
3040-01-268-013187643-7505 ITEM 65 INTERCHANGEABLE
Lever,manual Control
Derbyshire Machine & Tool Co
3040-01-346-143387643-7505 ITEM 93 INTERCHANGEABLE
Disc,drive,operator
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
501-4675699 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
DM47520 ITEM 40 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
87643-7501 PC40 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (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
3040-01-268-0131INTERCHANGEABLE
LEVER,MANUAL CONTROL
87643-7505 ITEM 65
3040-01-346-1433INTERCHANGEABLE
DISC,DRIVE,OPERATOR
87643-7505 ITEM 93

Frequently Asked Questions

What is NSN 4820-01-261-0145?

NSN 4820-01-261-0145 is a Stem,fluid Valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-261-0145?

NSN 4820-01-261-0145 has 3 cross-referenced part numbers: 501-4675699 (Electric Boat Corporation Div General Dynamics Electric Boat), DM47520 ITEM 40 (Electric Boat Corporation Div General Dynamics Electric Boat), 87643-7501 PC40 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4820-01-261-0145?

There are 9 known substitutes for 4820-01-261-0145: 3040-01-198-2688, 3040-01-198-2689, 3040-01-198-2690 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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