PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20630-20-20NAAAdapter,straight,tube to Hose

Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division · NSN 4730-00-834-1858 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-834-1858 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-834-1858. Primary manufacturer part number: 20630-20-20NAA.
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Thread Series Designator: UN FIRST END
  • Criticality Code Justification: ZZZX
  • Furnished Items and Quantity: 1 SOCKET
  • Material Document and Classification: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN
  • Nominal Thread Size: 1.625 INCHES FIRST END IN
  • Material: NICKEL ALLOY OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Nickel Alloy Overall construction
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-00-834-1858, 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 Corp Dba Pneutronics Div Stratoflex Products Division. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 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: Active.

Technical Specifications
ParameterValue
NSN4730-00-834-1858
Primary Part Number20630-20-20NAA
Item NameAdapter,straight,tube to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
StatusACTIVE
Thread Series DesignatorUN FIRST END
Criticality Code JustificationZZZX
Furnished Items and Quantity1 SOCKET
Material Document and ClassificationQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST END IN
Nominal Thread Size1.625 INCHES FIRST END IN
MaterialNICKEL ALLOY OVERALL
Nominal Overall Length5.100 INCHES IN
Thread Class2B FIRST END
Nominal Inside Diameter Hose Accommodated1.250 INCHES SECOND END IN
Departure From Cited DesignatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Thread Quantity Per Inch12 FIRST END
Seat Angle37.0 DEGREES FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-034-50244-4721-20 INTERCHANGEABLE
Adapter,straight,tube to Hose
Hydrasearch Company, Llc
Cross-Reference Index
Part NumberManufacturer
20630-20-20NAA Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
4-4721-20 Danfoss Power Solutions II, Llc (USA)
MILH24135TYACL1SZ-20 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4-4721-20L1 Naval Inventory Control Point Mechanicsburg (USA)
20630-20-20NAAL1 Naval Inventory Control Point Mechanicsburg (USA)
MILH24135TYACL1SZ-20L1 Naval Inventory Control Point Mechanicsburg (USA)
20630-20-20NAA Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division (USA)
Related Parts
4730-00-034-5024INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4-4721-20

Frequently Asked Questions

What is NSN 4730-00-834-1858?

NSN 4730-00-834-1858 is a Adapter,straight,tube to Hose, manufactured by Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-834-1858?

NSN 4730-00-834-1858 has 7 cross-referenced part numbers: 20630-20-20NAA (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 4-4721-20 (Danfoss Power Solutions II, Llc), MILH24135TYACL1SZ-20 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4-4721-20L1 (Naval Inventory Control Point Mechanicsburg), 20630-20-20NAAL1 (Naval Inventory Control Point Mechanicsburg) and 2 more.

What NSN replaces 4730-00-834-1858?

There is 1 known substitute for 4730-00-834-1858: 4730-00-034-5024. Verify interchangeability with system specifications before substitution.

What are the specifications of 20630-20-20NAA?

Key specifications for 20630-20-20NAA: Thread Series Designator: UN FIRST END; Criticality Code Justification: ZZZX; Furnished Items and Quantity: 1 SOCKET; Material Document and Classification: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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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