PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19-97-1919Restrictor,fluid Flow

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4730-01-148-7420 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-148-7420 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-148-7420. Primary manufacturer part number: 19-97-1919.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Material: COPPER ALLOY
  • Outside Diameter: 2.000 INCHES NOMINAL IN
  • 7 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Applications requiring Copper Alloy construction
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-148-7420, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-148-7420
Primary Part Number19-97-1919
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
MaterialCOPPER ALLOY
Outside Diameter2.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-01-148-833919-97-1931 INTERCHANGEABLE
Restrictor,fluid Flow
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
502-4685902 F18 Naval Ship Systems Command (USA)
87645-5451 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
502-4685902 ITE Naval Ship Systems Command (USA)
19-97-1919 Oceanetics Inc (USA)
83F1675-8 Drw Mfg Co (USA)
502-4685902 Naval Ship Systems Command (USA)
19-97-1919 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4730-01-148-8339INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
19-97-1931

Frequently Asked Questions

What is NSN 4730-01-148-7420?

NSN 4730-01-148-7420 is a Restrictor,fluid Flow, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-148-7420?

NSN 4730-01-148-7420 has 7 cross-referenced part numbers: 502-4685902 F18 (Naval Ship Systems Command), 87645-5451 (Electric Boat Corporation Div General Dynamics Electric Boat), 502-4685902 ITE (Naval Ship Systems Command), 19-97-1919 (Oceanetics Inc), 83F1675-8 (Drw Mfg Co) and 2 more.

What NSN replaces 4730-01-148-7420?

There is 1 known substitute for 4730-01-148-7420: 4730-01-148-8339. Verify interchangeability with system specifications before substitution.

What are the specifications of 19-97-1919?

Key specifications for 19-97-1919: Material: COPPER ALLOY; Outside Diameter: 2.000 INCHES NOMINAL IN. 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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