PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6209-3-7-2Cap,tube

Roburt and Associates · NSN 4730-00-180-5720 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-180-5720 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-180-5720. Primary manufacturer part number: 6209-3-7-2.
Features
  • Cap,tube — FSC 4730
  • Style Designator: CAP
  • Seat Angle: 37.0 DEGREES
  • Thread Quantity Per Inch: 24 INTERNAL
  • Thread Direction: RIGHT-HAND INTERNAL
  • Tube Outside Diameter for Which Designed: 0.188 INCHES NOMINAL IN
  • Connection Style: FLARE
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Cap,tube, cataloged under National Stock Number 4730-00-180-5720, 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 Roburt and Associates. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-180-5720
Primary Part Number6209-3-7-2
Item NameCap,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerRoburt and Associates
StatusACTIVE
Style DesignatorCAP
Seat Angle37.0 DEGREES
Thread Quantity Per Inch24 INTERNAL
Thread DirectionRIGHT-HAND INTERNAL
Tube Outside Diameter for Which Designed0.188 INCHES NOMINAL IN
Connection StyleFLARE
Surface TreatmentPASSIVATE OVERALL
Thread Series DesignatorUNF INTERNAL
Nominal Thread Size0.375 INCHES INTERNAL IN
Thread Class2B INTERNAL
MaterialSTEEL CORROSION RESISTING OVERALL
Thread Pitch Diameters+0.3430 TO 0.3468 INCHES INTERNAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-144-86680042847-4 INTERCHANGEABLE
Bearing,ball,annular
New Holland Construction
5306-00-146-7371 INTERCHANGEABLE
Bolt,externally Relieved Body
3110-00-158-72440A1565 INTERCHANGEABLE
Bearing,roller,cylindrical
Rbc Bearings Incorporated Div West Trenton Division
5998-00-248-2276IDS2246 INTERCHANGEABLE
Circuit Card Assembly
Transico, Inc. Dba Eeco Switch
4730-00-264-9158 INTERCHANGEABLE
Coupling,tube
4820-00-289-1171700SIZE1-8 INTERCHANGEABLE
Cock,drain
Crane Co Div Valve Div
3110-00-516-5491209 INTERCHANGEABLE
Bearing,ball,annular
Federal-Mogul Corp Government Sales Dept
2990-00-678-0072T6209 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
1560-00-827-7629 INTERCHANGEABLE
Adapter,pressure Fuel Servicing
5310-00-834-20676209 INTERCHANGEABLE
Nut,plain,hexagon
Unity Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
6209-3-7-2 Roburt and Associates (USA)
6209 Roburt and Associates (USA)
Related Parts
3110-00-144-8668INTERCHANGEABLE
BEARING,BALL,ANNULAR
0042847-4
5306-00-146-7371INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
3110-00-158-7244INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
0A1565
5998-00-248-2276INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
IDS2246
4730-00-264-9158INTERCHANGEABLE
COUPLING,TUBE
4820-00-289-1171INTERCHANGEABLE
COCK,DRAIN
700SIZE1-8
3110-00-516-5491INTERCHANGEABLE
BEARING,BALL,ANNULAR
209
2990-00-678-0072INTERCHANGEABLE
MUFFLER,EXHAUST
T6209
1560-00-827-7629INTERCHANGEABLE
ADAPTER,PRESSURE FUEL SERVICING
5310-00-834-2067INTERCHANGEABLE
NUT,PLAIN,HEXAGON
6209
3110-01-009-6006INTERCHANGEABLE
BEARING ASSEMBLY,SPECIAL
584884
3110-01-159-1166INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 4730-00-180-5720?

NSN 4730-00-180-5720 is a Cap,tube, manufactured by Roburt and Associates, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-180-5720?

NSN 4730-00-180-5720 has 2 cross-referenced part numbers: 6209-3-7-2 (Roburt and Associates), 6209 (Roburt and Associates).

What NSN replaces 4730-00-180-5720?

There are 12 known substitutes for 4730-00-180-5720: 3110-00-144-8668, 5306-00-146-7371, 3110-00-158-7244 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6209-3-7-2?

Key specifications for 6209-3-7-2: Style Designator: CAP; Seat Angle: 37.0 DEGREES; Thread Quantity Per Inch: 24 INTERNAL; Thread Direction: RIGHT-HAND INTERNAL. 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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