PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R500-6Adapter,straight,pipe to Tube

Chicago Fittings · NSN 4730-00-422-9431 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-422-9431 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-422-9431. Primary manufacturer part number: R500-6.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Overall Length: 1.593 INCHES IN
  • Connection Style: GASKET SEAL, COMPRESSION (TUBE) FIRST END
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Connection Style: PLAIN (PIPE) SECOND END
  • Thread Class: 2A FIRST END A
  • Thread Quantity Per Inch: 20 FIRST END
  • Material: STEEL OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-422-9431, 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 Chicago Fittings. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4730-00-422-9431
Primary Part NumberR500-6
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerChicago Fittings
StatusACTIVE
Nominal Overall Length1.593 INCHES IN
Connection StyleGASKET SEAL, COMPRESSION (TUBE) FIRST END
Nominal Thread Size0.250 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Thread Class2A FIRST END A
Thread Quantity Per Inch20 FIRST END
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Series DesignatorUN FIRST END
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Furnished Items and Quantity1 TUBE COUPLING NUT AND 1 SPLIT COLLET SLEEVE AND 1 PREFORMED PACKING AND 1 BACKUP WASHER
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Thread Size0.687 INCHES FIRST END IN
Thread Series DesignatorNPTF SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4720-00-857-1731 INTERCHANGEABLE
Hose,nonmetallic
Cross-Reference Index
Part NumberManufacturer
R500-6 PRIMARY Chicago Fittings (USA)
1304730 Clark Material Handling Company (USA)
1304730 Clark Equipment Co (USA)
100-6 Lenz Inc Dba the Lenz Company (USA)
Related Parts
4720-00-857-1731INTERCHANGEABLE
HOSE,NONMETALLIC

Frequently Asked Questions

What is NSN 4730-00-422-9431?

NSN 4730-00-422-9431 is a Adapter,straight,pipe to Tube, manufactured by Chicago Fittings, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-422-9431?

NSN 4730-00-422-9431 has 4 cross-referenced part numbers: R500-6 (Chicago Fittings), 1304730 (Clark Material Handling Company), 1304730 (Clark Equipment Co), 100-6 (Lenz Inc Dba the Lenz Company).

What NSN replaces 4730-00-422-9431?

There is 1 known substitute for 4730-00-422-9431: 4720-00-857-1731. Verify interchangeability with system specifications before substitution.

What are the specifications of R500-6?

Key specifications for R500-6: Nominal Overall Length: 1.593 INCHES IN; Connection Style: GASKET SEAL, COMPRESSION (TUBE) FIRST END; Nominal Thread Size: 0.250 INCHES SECOND END IN; Connection Style: PLAIN (PIPE) SECOND END. 16 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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