PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26077Connector,fluid,pump

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 4320-01-666-3603 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-666-3603 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-666-3603. Primary manufacturer part number: 26077.
Features
  • Connector,fluid,pump — FSC 4320
  • Connection Location: INLET CONNECTION
  • Connection Size: 0.4375 INCHES IN
  • 1 verified cross-reference
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Electrical interconnection
  • Signal interface mating
General Description

The Connector,fluid,pump, cataloged under National Stock Number 4320-01-666-3603, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. Government technical data includes 2 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-666-3603
Primary Part Number26077
Item NameConnector,fluid,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Connection LocationINLET CONNECTION
Connection Size0.4375 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2530-00-195-0152134430 INTERCHANGEABLE
Spool,valve,steering
Dana Off Highway Products, Llc
5945-00-257-9046 INTERCHANGEABLE
Relay,electromagnetic
5950-00-320-73384611924 INTERCHANGEABLE
Transformer,audio Frequency
Naval Ship Systems Command
6150-01-302-062326077 INTERCHANGEABLE
Wiring Harness
U S Dept of Transportation Federal Aviation Administration
5935-01-693-391826077 INTERCHANGEABLE
Connector,plug,electrical
Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
Cross-Reference Index
Part NumberManufacturer
26077 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
Related Parts
2530-00-195-0152INTERCHANGEABLE
SPOOL,VALVE,STEERING
134430
5945-00-257-9046INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5950-00-320-7338INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4611924
6150-01-302-0623INTERCHANGEABLE
WIRING HARNESS
26077
5935-01-693-3918INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
26077

Frequently Asked Questions

What is NSN 4320-01-666-3603?

NSN 4320-01-666-3603 is a Connector,fluid,pump, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-666-3603?

NSN 4320-01-666-3603 has 1 cross-referenced part number: 26077 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems).

What NSN replaces 4320-01-666-3603?

There are 5 known substitutes for 4320-01-666-3603: 2530-00-195-0152, 5945-00-257-9046, 5950-00-320-7338 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26077?

Key specifications for 26077: Part Name Assigned by Controlling Agency: CONNECTOR, FLUID, PUMP; Special Features: WITH SEALS; End Item Identification: 4910-01-613-4708; Connection Location: INLET CONNECTION. 5 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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