PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4641865-0025Test Fitting,valve

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4820-01-169-3687 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-169-3687 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-169-3687. Primary manufacturer part number: 4641865-0025.
Features
  • Test Fitting,valve — FSC 4820
  • 5 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 Test Fitting,valve, cataloged under National Stock Number 4820-01-169-3687, 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 5 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.

Catalog Facts
Item NameTest Fitting,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersNaval Ship Systems Command (CAGE 80064); Electric Boat Corporation Div General Dynamics Electric Boat (CAGE 96169)
Technical Specifications
ParameterValue
NSN4820-01-169-3687
Primary Part Number4641865-0025
Item NameTest Fitting,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
5305-00-724-7266AES01C625E00AW9A91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
4820-01-115-8340100-4641865 ITEM 11 INTERCHANGEABLE
Plate,test Fitting
Naval Ship Systems Command
4820-01-116-599987415-0163 ITEM 13 INTERCHANGEABLE
Plate,test Fitting
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-117-7576100-4641865 ITEM 7 INTERCHANGEABLE
Plate,test Filtering,valve
Naval Ship Systems Command
4820-01-117-759387415-0163 ITEM 14 INTERCHANGEABLE
Plate,test Fitting
Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-130-128687415-0164PC10 INTERCHANGEABLE
Flange,pipe
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-131-2488100-4641865 ITEM 9 INTERCHANGEABLE
Plate,test Fitting,valve
Naval Ship Systems Command
4730-01-161-2055100-4641866-FTG NO.17 E 4-C INTERCHANGEABLE
Flange,pipe,blind
Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-192-3561100-4641865 LINE 22 4641866TYA INTERCHANGEABLE
Flange,pipe,blind
Naval Ship Systems Command
Cross-Reference Index
Part NumberManufacturer
100-4641865 ITEM 25 Naval Ship Systems Command (USA)
87415-0163 ITEM 25 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
4641865-0025 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
87415-0163 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
100-4641865 Naval Ship Systems Command (USA)
Related Parts
5305-00-724-7266INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01C625E00AW9A91
4820-01-115-8340INTERCHANGEABLE
PLATE,TEST FITTING
100-4641865 ITEM 11
4820-01-116-5999INTERCHANGEABLE
PLATE,TEST FITTING
87415-0163 ITEM 13
4820-01-117-7576INTERCHANGEABLE
PLATE,TEST FILTERING,VALVE
100-4641865 ITEM 7
4820-01-117-7593INTERCHANGEABLE
PLATE,TEST FITTING
87415-0163 ITEM 14
4730-01-130-1286INTERCHANGEABLE
FLANGE,PIPE
87415-0164PC10
4820-01-131-2488INTERCHANGEABLE
PLATE,TEST FITTING,VALVE
100-4641865 ITEM 9
4730-01-161-2055INTERCHANGEABLE
FLANGE,PIPE,BLIND
100-4641866-FTG NO.17 E 4-C
4730-01-192-3561INTERCHANGEABLE
FLANGE,PIPE,BLIND
100-4641865 LINE 22 4641866TYA

Frequently Asked Questions

What is NSN 4820-01-169-3687?

NSN 4820-01-169-3687 is a Test Fitting,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 4820-01-169-3687?

NSN 4820-01-169-3687 has 5 cross-referenced part numbers: 100-4641865 ITEM 25 (Naval Ship Systems Command), 87415-0163 ITEM 25 (Electric Boat Corporation Div General Dynamics Electric Boat), 4641865-0025 (Electric Boat Corporation Div General Dynamics Electric Boat), 87415-0163 (Electric Boat Corporation Div General Dynamics Electric Boat), 100-4641865 (Naval Ship Systems Command).

What NSN replaces 4820-01-169-3687?

There are 9 known substitutes for 4820-01-169-3687: 5305-00-724-7266, 4820-01-115-8340, 4820-01-116-5999 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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