PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

526-8DAdapter,straight,tube to Hose

Spear Industries Inc · NSN 4730-01-083-9648 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-083-9648 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-083-9648. Primary manufacturer part number: 526-8D.
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
  • Nominal Outside Diameter Hose Accommodated: 0.640 INCHES SECOND END IN
  • Thread Class: 3B FIRST END
  • Nominal Inside Diameter Hose Accommodated: 0.440 INCHES SECOND END IN
  • Seat Angle: 37.0 DEGREES FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-01-083-9648, 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 Spear Industries Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4730-01-083-9648
Primary Part Number526-8D
Item NameAdapter,straight,tube to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSpear Industries Inc
StatusACTIVE
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
Nominal Outside Diameter Hose Accommodated0.640 INCHES SECOND END IN
Thread Class3B FIRST END
Nominal Inside Diameter Hose Accommodated0.440 INCHES SECOND END IN
Seat Angle37.0 DEGREES FIRST END
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Surface Treatment Document and ClassificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Connection StyleGRIPPING NIPPLE (NOSE) SECOND END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND END
MaterialALUMINUM ALLOY OVERALL
Nominal Overall Length1.880 INCHES IN
Nominal Thread Size0.750 INCHES FIRST END IN
Surface TreatmentANODIZE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-632-2002 INTERCHANGEABLE
Adapter,straight,tube to Hose
Cross-Reference Index
Part NumberManufacturer
526-8D Spear Industries Inc
Related Parts
4730-00-632-2002INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE

Frequently Asked Questions

What is NSN 4730-01-083-9648?

NSN 4730-01-083-9648 is a Adapter,straight,tube to Hose, manufactured by Spear Industries Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-083-9648?

NSN 4730-01-083-9648 has 1 cross-referenced part number: 526-8D (Spear Industries Inc).

What NSN replaces 4730-01-083-9648?

There is 1 known substitute for 4730-01-083-9648: 4730-00-632-2002. Verify interchangeability with system specifications before substitution.

What are the specifications of 526-8D?

Key specifications for 526-8D: Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END; Nominal Outside Diameter Hose Accommodated: 0.640 INCHES SECOND END IN; Thread Class: 3B FIRST END. 15 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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