PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6505-8-8Adapter,straight,pipe to Tube

Brennan Industries · NSN 4730-01-431-9230 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-431-9230 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-431-9230. Primary manufacturer part number: 6505-8-8.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Connection Style: PLAIN (PIPE) SECOND END
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Thread Class: 3B FIRST END
  • Connection Style: SWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END
  • Thread Series Designator: UNF FIRST END
  • Seat Angle: 12.0 DEGREES 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 4730-01-431-9230, 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 Brennan Industries. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-431-9230
Primary Part Number6505-8-8
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerBrennan Industries
StatusACTIVE
Connection StylePLAIN (PIPE) SECOND END
Nominal Thread Size0.750 INCHES FIRST END IN
Thread Class3B FIRST END
Connection StyleSWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END
Thread Series DesignatorUNF FIRST END
Seat Angle12.0 DEGREES FIRST END
MaterialSTEEL OVERALL
Nominal Overall Length1.690 INCHES IN
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Thread Size0.500 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Thread Series DesignatorNPT SECOND END
Nominal Outside Diameter Tube Accommodated0.312 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-01-431-92286505-6-4 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Brennan Industries
4730-01-443-98226505-4-4 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Brennan Industries
Cross-Reference Index
Part NumberManufacturer
3070AS588 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
6505-8-8 PRIMARY Brennan Industries (USA)
3070AS588-8 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
Related Parts
4730-01-431-9228INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
6505-6-4
4730-01-443-9822INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
6505-4-4

Frequently Asked Questions

What is NSN 4730-01-431-9230?

NSN 4730-01-431-9230 is a Adapter,straight,pipe to Tube, manufactured by Brennan Industries, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-431-9230?

NSN 4730-01-431-9230 has 3 cross-referenced part numbers: 3070AS588 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 6505-8-8 (Brennan Industries), 3070AS588-8 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What NSN replaces 4730-01-431-9230?

There are 2 known substitutes for 4730-01-431-9230: 4730-01-431-9228, 4730-01-443-9822. Verify interchangeability with system specifications before substitution.

What are the specifications of 6505-8-8?

Key specifications for 6505-8-8: Connection Style: PLAIN (PIPE) SECOND END; Nominal Thread Size: 0.750 INCHES FIRST END IN; Thread Class: 3B FIRST END; Connection Style: SWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END. 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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