PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6 SC 4Reducer,tube

Parker-Hannifin Corporation Div Instrumentation Products Division · NSN 4730-00-793-2746 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-793-2746 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-793-2746. Primary manufacturer part number: 6 SC 4.
Features
  • Reducer,tube — FSC 4730
  • Nominal Overall Length: 1.700 INCHES IN
  • Nominal Thread Size: 0.562 INCHES FIRST END IN
  • Reducer Type: CONCENTRIC
  • Thread Series Designator: UNF SECOND END
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN
  • Material: COPPER ALLOY OVERALL
  • Furnished Items and Quantity: 4 FERRULE SLEEVE AND 2 TUBE COUPLING NUT
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-793-2746, 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 Parker-Hannifin Corporation Div Instrumentation Products Division. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-793-2746
Primary Part Number6 SC 4
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Div Instrumentation Products Division
StatusACTIVE
Nominal Overall Length1.700 INCHES IN
Nominal Thread Size0.562 INCHES FIRST END IN
Reducer TypeCONCENTRIC
Thread Series DesignatorUNF SECOND END
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
MaterialCOPPER ALLOY OVERALL
Furnished Items and Quantity4 FERRULE SLEEVE AND 2 TUBE COUPLING NUT
Thread Quantity Per Inch20 FIRST END
Thread Series DesignatorUNS FIRST END
Thread Class3A ALL ENDS A
Nominal Outside Diameter Tube Accommodated0.250 INCHES SECOND END IN
Connection StyleFLARELESS (TUBE) ALL ENDS
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Nominal Thread Size0.438 INCHES SECOND END IN
Seat Angle20.0 DEGREES ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3455-00-249-179219659 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6625-00-498-3497224A INTERCHANGEABLE
Oscilloscope
Thales Components Corp Div Thales Components Corporation
5930-01-473-642413211662 INTERCHANGEABLE
Boot,dust and Moisture Seal
Us Army Aviation and Missile Command
8465-01-517-477660064 INTERCHANGEABLE
Hydration System
Camelbak Products, Llc Dba Camelbak
5310-01-560-063360064 INTERCHANGEABLE
Washer,seal
Apm Hexseal Corp
1560-01-732-524960064 INTERCHANGEABLE
Bracket,structural Component,air
Md Helicopters Inc
Cross-Reference Index
Part NumberManufacturer
6-4HBZ-B Forberg Scientific Inc (USA)
6-4HBZB Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn (USA)
6 SC 4 PRIMARY Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
B-601-6-4 Swagelok Co (USA)
600-6-4 Swagelok Co (USA)
B-600-6-4 PRIMARY Swagelok Co (USA)
6-4HBZB Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
6-4HBZ-B A. F. Brock & Co. Dba a. F. Brock & Co. / Ph, Inc (USA)
Related Parts
3455-00-249-1792INTERCHANGEABLE
REAMER,MACHINE
19659
6625-00-498-3497INTERCHANGEABLE
OSCILLOSCOPE
224A
5930-01-473-6424INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
13211662
8465-01-517-4776INTERCHANGEABLE
HYDRATION SYSTEM
60064
5310-01-560-0633INTERCHANGEABLE
WASHER,SEAL
60064
1560-01-732-5249INTERCHANGEABLE
BRACKET,STRUCTURAL COMPONENT,AIR
60064

Frequently Asked Questions

What is NSN 4730-00-793-2746?

NSN 4730-00-793-2746 is a Reducer,tube, manufactured by Parker-Hannifin Corporation Div Instrumentation Products Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-793-2746?

NSN 4730-00-793-2746 has 8 cross-referenced part numbers: 6-4HBZ-B (Forberg Scientific Inc), 6-4HBZB (Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn), 6 SC 4 (Parker-Hannifin Corporation Div Instrumentation Products Division), B-601-6-4 (Swagelok Co), 600-6-4 (Swagelok Co) and 3 more.

What NSN replaces 4730-00-793-2746?

There are 6 known substitutes for 4730-00-793-2746: 3455-00-249-1792, 6625-00-498-3497, 5930-01-473-6424 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6 SC 4?

Key specifications for 6 SC 4: Nominal Overall Length: 1.700 INCHES IN; Nominal Thread Size: 0.562 INCHES FIRST END IN; Reducer Type: CONCENTRIC; Thread Series Designator: UNF SECOND END. 15 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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