PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B647Restrictor,fluid Flow

General Electric Co Naval and Drive Turbine Systems Dept · NSN 4730-01-412-9626 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-412-9626 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-412-9626. Primary manufacturer part number: B647.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Material: STEEL CORROSION RESISTING
  • Design Type: PLATE
  • Orifice Diameter: 0.660 INCHES NOMINAL IN
  • Thread Provision: UNTHREADED FIRST PROVISION
  • Outside Diameter: 3.380 INCHES NOMINAL IN
  • Length: 1.500 INCHES NOMINAL IN
  • 3 verified cross-references
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-412-9626, 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 General Electric Co Naval and Drive Turbine Systems Dept. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-412-9626
Primary Part NumberB647
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGeneral Electric Co Naval and Drive Turbine Systems Dept
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Design TypePLATE
Orifice Diameter0.660 INCHES NOMINAL IN
Thread ProvisionUNTHREADED FIRST PROVISION
Outside Diameter3.380 INCHES NOMINAL IN
Length1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6680-01-164-6859 INTERCHANGEABLE
Indicator,sight,liquid
4730-01-411-9516 INTERCHANGEABLE
Restrictor,fluid Flow
4730-01-411-9520 INTERCHANGEABLE
Restrictor,fluid Flow
4730-01-412-9617 INTERCHANGEABLE
Restrictor,fluid Flow
Cross-Reference Index
Part NumberManufacturer
B647 General Electric Co Naval and Drive Turbine Systems Dept (USA)
PL501E405XR-289 General Electric Co Naval and Drive Turbine Systems Dept (USA)
B64707A01066 General Electric Co Naval and Drive Turbine Systems Dept (USA)
Related Parts
6680-01-164-6859INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
4730-01-411-9516INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
4730-01-411-9520INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
4730-01-412-9617INTERCHANGEABLE
RESTRICTOR,FLUID FLOW

Frequently Asked Questions

What is NSN 4730-01-412-9626?

NSN 4730-01-412-9626 is a Restrictor,fluid Flow, manufactured by General Electric Co Naval and Drive Turbine Systems Dept, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-412-9626?

NSN 4730-01-412-9626 has 3 cross-referenced part numbers: B647 (General Electric Co Naval and Drive Turbine Systems Dept), PL501E405XR-289 (General Electric Co Naval and Drive Turbine Systems Dept), B64707A01066 (General Electric Co Naval and Drive Turbine Systems Dept).

What NSN replaces 4730-01-412-9626?

There are 4 known substitutes for 4730-01-412-9626: 6680-01-164-6859, 4730-01-411-9516, 4730-01-411-9520 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B647?

Key specifications for B647: Material: STEEL CORROSION RESISTING; Design Type: PLATE; Special Features: USED ON VALVE, SWING.; Orifice Diameter: 0.660 INCHES NOMINAL IN. 8 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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