PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

526-4Adapter,straight,tube to Hose

Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution · NSN 4730-01-106-1563 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-106-1563 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-106-1563. Primary manufacturer part number: 526-4.
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Thread Series Designator: UNF FIRST END
  • Nominal Thread Size: 0.438 INCHES FIRST END IN
  • Seat Angle: 37.0 DEGREES FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN
  • Nominal Outside Diameter Hose Accommodated: 0.328 INCHES SECOND END IN
  • Nominal Inside Diameter Hose Accommodated: 0.250 INCHES SECOND END IN
  • Connection Type: THREADED INTERNAL TUBE FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-01-106-1563, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-106-1563
Primary Part Number526-4
Item NameAdapter,straight,tube to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
StatusACTIVE
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.438 INCHES FIRST END IN
Seat Angle37.0 DEGREES FIRST END
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Nominal Outside Diameter Hose Accommodated0.328 INCHES SECOND END IN
Nominal Inside Diameter Hose Accommodated0.250 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Thread Class2B FIRST END
Operating Pressure2750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Surface TreatmentDICHROMATE OVERALL
Maximum Operating Temp212.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection StyleSWIVEL NUT INVERTED FLARE (TUBE) FIRST END
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
MaterialSTEEL OVERALL
Nominal Overall Length1.625 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5935-00-201-84675264 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5955-00-250-0568 INTERCHANGEABLE
Crystal Unit,quartz
5120-00-261-2828 INTERCHANGEABLE
Socket,socket Wrench
3020-00-268-42005264 INTERCHANGEABLE
Gear,helical
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
5961-00-540-9619M235A147-2 INTERCHANGEABLE
Transistor
Instrument Systems Corp
5330-00-894-93135264 INTERCHANGEABLE
Packing with Retainer
Abb Installation Products Inc
5935-00-966-2008 INTERCHANGEABLE
Connector,plug,electrical
5935-01-005-3579 INTERCHANGEABLE
Connector,plug,electrical
5340-01-265-67465264 INTERCHANGEABLE
Retainer,helical Compression Spr
Husco International Inc
3020-01-487-3017 INTERCHANGEABLE
Sprocket Wheel
Cross-Reference Index
Part NumberManufacturer
526-4 Aero Hardware & Supply, Inc. Dba Hydraulic Supply Co Div Hydraulic Supply Company (USA)
526-4 Satair A/s (DNK)
526-4 PRIMARY Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
5935-00-201-8467INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5264
5955-00-250-0568INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5120-00-261-2828INTERCHANGEABLE
SOCKET,SOCKET WRENCH
3020-00-268-4200INTERCHANGEABLE
GEAR,HELICAL
5264
5961-00-540-9619INTERCHANGEABLE
TRANSISTOR
M235A147-2
5330-00-894-9313INTERCHANGEABLE
PACKING WITH RETAINER
5264
5935-00-966-2008INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5935-01-005-3579INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5340-01-265-6746INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
5264
3020-01-487-3017INTERCHANGEABLE
SPROCKET WHEEL
6685-01-666-9783INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
5264

Frequently Asked Questions

What is NSN 4730-01-106-1563?

NSN 4730-01-106-1563 is a Adapter,straight,tube to Hose, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-106-1563?

NSN 4730-01-106-1563 has 3 cross-referenced part numbers: 526-4 (Aero Hardware & Supply, Inc. Dba Hydraulic Supply Co Div Hydraulic Supply Company), 526-4 (Satair A/s), 526-4 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).

What NSN replaces 4730-01-106-1563?

There are 11 known substitutes for 4730-01-106-1563: 5935-00-201-8467, 5955-00-250-0568, 5120-00-261-2828 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 526-4?

Key specifications for 526-4: Thread Series Designator: UNF FIRST END; Nominal Thread Size: 0.438 INCHES FIRST END IN; Seat Angle: 37.0 DEGREES FIRST END; Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN. 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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