PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

605-4Insert,tube Fitting

Swagelok Co · NSN 4730-00-771-5308 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-771-5308 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-771-5308. Primary manufacturer part number: 605-4.
Features
  • Insert,tube Fitting — FSC 4730
  • Casehardening Indicator: NOT CASEHARDENED
  • Style Designator: SERRATED
  • Tube Inside Diameter for Which Designed: 0.250 INCHES NOMINAL IN
  • Flange Outside Diameter: 0.375 INCHES NOMINAL IN
  • Sleeve Outside Diameter: 0.250 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • 12 verified cross-references
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy construction
General Description

The Insert,tube Fitting, cataloged under National Stock Number 4730-00-771-5308, 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 Swagelok Co. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 7 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
NSN4730-00-771-5308
Primary Part Number605-4
Item NameInsert,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co
StatusACTIVE
Casehardening IndicatorNOT CASEHARDENED
Style DesignatorSERRATED
Tube Inside Diameter for Which Designed0.250 INCHES NOMINAL IN
Flange Outside Diameter0.375 INCHES NOMINAL IN
Sleeve Outside Diameter0.250 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6660-00-084-51056-054 INTERCHANGEABLE
Electronic Power Su
Applied Biosystems, Llc Dba Life Technologies
5360-00-111-3239 INTERCHANGEABLE
Spring,helical,compression
5330-00-363-773018028A INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5950-00-433-5799 INTERCHANGEABLE
Transformer,power
2540-00-656-05886560588 INTERCHANGEABLE
Blower,hull Ventila
U S Army Tank Automotive Command Amsta-Im-Mm
5935-00-690-48221363 INTERCHANGEABLE
Adapter,connector
Sv Microwave, Inc. Div Sv Microwave
5950-00-879-39367747972G4 INTERCHANGEABLE
Coil,radio Frequency
Lockheed Martin Corporation Div Rms
2910-00-930-9367 INTERCHANGEABLE
Pump,fuel,electrical
5975-01-034-3443 INTERCHANGEABLE
Protector,electrical Cable
5120-01-367-7213 INTERCHANGEABLE
Screwdriver,flat Tip
Cross-Reference Index
Part NumberManufacturer
6T12-B Forberg Scientific Inc (USA)
6T12-B Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
HD-159-6 Velvac Inc (USA)
6T23UIB Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
6T23U1B Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
6T12-B A. F. Brock & Co. Dba a. F. Brock & Co. / Ph, Inc (USA)
6 T1Z(.250) Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
605-4 PRIMARY Swagelok Co (USA)
6T23UIB Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
6 TIZ .250-B Forberg Scientific Inc (USA)
6T23UIB Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
6T23U1B Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
Related Parts
6660-00-084-5105INTERCHANGEABLE
ELECTRONIC POWER SU
6-054
5360-00-111-3239INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5330-00-363-7730INTERCHANGEABLE
GASKET
18028A
5950-00-433-5799INTERCHANGEABLE
TRANSFORMER,POWER
2540-00-656-0588INTERCHANGEABLE
BLOWER,HULL VENTILA
6560588
5935-00-690-4822INTERCHANGEABLE
ADAPTER,CONNECTOR
1363
5950-00-879-3936INTERCHANGEABLE
COIL,RADIO FREQUENCY
7747972G4
2910-00-930-9367INTERCHANGEABLE
PUMP,FUEL,ELECTRICAL
5975-01-034-3443INTERCHANGEABLE
PROTECTOR,ELECTRICAL CABLE
5120-01-367-7213INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
2540-01-513-8250INTERCHANGEABLE
ARM,WINDSHIELD WIPER
8036716

Frequently Asked Questions

What is NSN 4730-00-771-5308?

NSN 4730-00-771-5308 is a Insert,tube Fitting, manufactured by Swagelok Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-771-5308?

NSN 4730-00-771-5308 has 12 cross-referenced part numbers: 6T12-B (Forberg Scientific Inc), 6T12-B (Parker-Hannifin Corporation Div Instrumentation Products Division), HD-159-6 (Velvac Inc), 6T23UIB (Parker-Hannifin Corporation Div Instrumentation Products Division), 6T23U1B (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division) and 7 more.

What NSN replaces 4730-00-771-5308?

There are 11 known substitutes for 4730-00-771-5308: 6660-00-084-5105, 5360-00-111-3239, 5330-00-363-7730 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 605-4?

Key specifications for 605-4: Casehardening Indicator: NOT CASEHARDENED; Style Designator: SERRATED; Tube Inside Diameter for Which Designed: 0.250 INCHES NOMINAL IN; Flange Outside Diameter: 0.375 INCHES NOMINAL IN. 6 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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