PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4FNUSCap,tube

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-00-781-6008 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-781-6008 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-781-6008. Primary manufacturer part number: 4FNUS.
Features
  • Cap,tube — FSC 4730
  • Material: STEEL CORROSION RESISTING OVERALL
  • Style Designator: CAP, TUBE, FLARELESS
  • Nominal Thread Size: 0.438 INCHES INTERNAL IN
  • Thread Class: 2B INTERNAL
  • Seat Nominal Radius: 0.0225 INCHES IN
  • Connection Style: PRESSURE SEAL FLARELESS
  • Thread Series Designator: UNF INTERNAL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Cap,tube, cataloged under National Stock Number 4730-00-781-6008, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-781-6008
Primary Part Number4FNUS
Item NameCap,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING OVERALL
Style DesignatorCAP, TUBE, FLARELESS
Nominal Thread Size0.438 INCHES INTERNAL IN
Thread Class2B INTERNAL
Seat Nominal Radius0.0225 INCHES IN
Connection StylePRESSURE SEAL FLARELESS
Thread Series DesignatorUNF INTERNAL
Tube Outside Diameter for Which Designed0.250 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4730-00-727-7480SAE J514-2 4 080112C INTERCHANGEABLE
Cap,tube
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
4FNUS PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
4FNUS Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
B2808-67 Gichner Systems Group Inc Gichner Mobilizer Div (USA)
UF9294S PRIMARY Bowes Mfg Inc (USA)
4FNUS Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
Related Parts
4730-00-727-7480INTERCHANGEABLE
CAP,TUBE
SAE J514-2 4 080112C

Frequently Asked Questions

What is NSN 4730-00-781-6008?

NSN 4730-00-781-6008 is a Cap,tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-781-6008?

NSN 4730-00-781-6008 has 5 cross-referenced part numbers: 4FNUS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 4FNUS (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), B2808-67 (Gichner Systems Group Inc Gichner Mobilizer Div), UF9294S (Bowes Mfg Inc), 4FNUS (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division).

What NSN replaces 4730-00-781-6008?

There is 1 known substitute for 4730-00-781-6008: 4730-00-727-7480. Verify interchangeability with system specifications before substitution.

What are the specifications of 4FNUS?

Key specifications for 4FNUS: Material: STEEL CORROSION RESISTING OVERALL; Style Designator: CAP, TUBE, FLARELESS; Nominal Thread Size: 0.438 INCHES INTERNAL IN; Thread Class: 2B INTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-781-6008 still in active supply?

NSN 4730-00-781-6008 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com