PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-6983491Connector,fluid,pump

Naval Sea Systems Command · NSN 4320-01-459-6446 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-459-6446 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-459-6446. Primary manufacturer part number: 803-6983491.
Features
  • Connector,fluid,pump — FSC 4320
  • Material: NICKEL ALLOY
  • Connection Type: FLANGE
  • Pump Model Number for Which Designed: 6983491
  • Pump Design Control Activity: 53711
  • Connection Size: 3.000 INCHES IN
  • Connection Location: INLET CONNECTION AND OUTLET CONNECTION
  • 2 verified cross-references
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 4320-01-459-6446, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-459-6446
Primary Part Number803-6983491
Item NameConnector,fluid,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialNICKEL ALLOY
Connection TypeFLANGE
Pump Model Number for Which Designed6983491
Pump Design Control Activity53711
Connection Size3.000 INCHES IN
Connection LocationINLET CONNECTION AND OUTLET CONNECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4810-01-459-56336983491-25 INTERCHANGEABLE
Retainer,seat,valve
Naval Sea Systems Command
4820-01-459-5635803-6983491 PC 29 INTERCHANGEABLE
Retainer,seat,valve
Naval Sea Systems Command
4820-01-459-5636803-6983491 PC 23 INTERCHANGEABLE
Retainer,seat,valve
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
803-6983491 PRIMARY Naval Sea Systems Command (USA)
6983491-169 Naval Sea Systems Command (USA)
Related Parts
4810-01-459-5633INTERCHANGEABLE
RETAINER,SEAT,VALVE
6983491-25
4820-01-459-5635INTERCHANGEABLE
RETAINER,SEAT,VALVE
803-6983491 PC 29
4820-01-459-5636INTERCHANGEABLE
RETAINER,SEAT,VALVE
803-6983491 PC 23

Frequently Asked Questions

What is NSN 4320-01-459-6446?

NSN 4320-01-459-6446 is a Connector,fluid,pump, manufactured by Naval Sea Systems Command, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-459-6446?

NSN 4320-01-459-6446 has 2 cross-referenced part numbers: 803-6983491 (Naval Sea Systems Command), 6983491-169 (Naval Sea Systems Command).

What NSN replaces 4320-01-459-6446?

There are 3 known substitutes for 4320-01-459-6446: 4810-01-459-5633, 4820-01-459-5635, 4820-01-459-5636. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-6983491?

Key specifications for 803-6983491: Material: NICKEL ALLOY; Connection Type: FLANGE; Pump Model Number for Which Designed: 6983491; Pump Design Control Activity: 53711. 6 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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