PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-8-1-4FFSSReducer,pipe

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-00-307-6518 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-307-6518 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-307-6518. Primary manufacturer part number: 3-8-1-4FFSS.
Features
  • Reducer,pipe — FSC 4730
  • Nominal Pipe Size Accommodated: 0.375 INCHES FIRST END IN
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Connection Style: PLAIN (PIPE) SECOND END
  • Reducer Type: CONCENTRIC
  • Material: STEEL CORROSION RESISTING OVERALL
  • Nominal Overall Length: 1.450 INCHES IN
  • Thread Series Designator: NPTF SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-00-307-6518, 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 Dba Pneutronics Div Tube Fittings Division. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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
NSN4730-00-307-6518
Primary Part Number3-8-1-4FFSS
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusACTIVE
Nominal Pipe Size Accommodated0.375 INCHES FIRST END IN
Nominal Thread Size0.250 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Reducer TypeCONCENTRIC
MaterialSTEEL CORROSION RESISTING OVERALL
Nominal Overall Length1.450 INCHES IN
Thread Series DesignatorNPTF SECOND END
Nominal Thread Size0.375 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Connection StylePLAIN (PIPE) FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Pipe Size Accommodated0.250 INCHES SECOND END IN
Thread Series DesignatorNPTF FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-726-1103118-2658-5 INTERCHANGEABLE
Reducer,pipe
Landoll Company, Llc
Cross-Reference Index
Part NumberManufacturer
3-8-1-4FFSS Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
161302100 Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA)
3-8-1-4FFSS Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
3/8-1/4 FF-SS Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division (USA)
2083-6-4S Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
3-8-1-4FFSS PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
Related Parts
4730-00-726-1103INTERCHANGEABLE
REDUCER,PIPE
118-2658-5

Frequently Asked Questions

What is NSN 4730-00-307-6518?

NSN 4730-00-307-6518 is a Reducer,pipe, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-307-6518?

NSN 4730-00-307-6518 has 6 cross-referenced part numbers: 3-8-1-4FFSS (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 161302100 (Leonardo S.p.a. - Electronics Division - Defence Business Area), 3-8-1-4FFSS (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), 3/8-1/4 FF-SS (Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division), 2083-6-4S (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution) and 1 more.

What NSN replaces 4730-00-307-6518?

There is 1 known substitute for 4730-00-307-6518: 4730-00-726-1103. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-8-1-4FFSS?

Key specifications for 3-8-1-4FFSS: Nominal Pipe Size Accommodated: 0.375 INCHES FIRST END IN; Nominal Thread Size: 0.250 INCHES SECOND END IN; Connection Style: PLAIN (PIPE) SECOND END; Reducer Type: CONCENTRIC. 13 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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