PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6127Adapter,straight,flange to Tube

Kovatch Corp. · NSN 4730-01-133-8022 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-133-8022 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-133-8022. Primary manufacturer part number: 6127.
Features
  • Adapter,straight,flange to Tube — FSC 4730
  • Nominal Width Across Flats: 5.625 INCHES SECOND END IN
  • Flange Shape: OCTAGON WITH HOLES SECOND END
  • Material: ALUMINUM ALLOY OVERALL
  • Connection Style: GROOVED (TUBE) FIRST END
  • Nominal Outside Diameter Tube Accommodated: 4.000 INCHES FIRST END IN
  • Bolt Hole Quantity: 6 SECOND END
  • Bolt Circle Nominal Diameter: 4.937 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-133-8022, 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 Kovatch Corp.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-133-8022
Primary Part Number6127
Item NameAdapter,straight,flange to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerKovatch Corp.
StatusACTIVE
Nominal Width Across Flats5.625 INCHES SECOND END IN
Flange ShapeOCTAGON WITH HOLES SECOND END
MaterialALUMINUM ALLOY OVERALL
Connection StyleGROOVED (TUBE) FIRST END
Nominal Outside Diameter Tube Accommodated4.000 INCHES FIRST END IN
Bolt Hole Quantity6 SECOND END
Bolt Circle Nominal Diameter4.937 INCHES SECOND END IN
Nominal Overall Length1.523 INCHES IN
Connection TypeUNTHREADED EXTERNAL TUBE FIRST END
Flange Face DesignPLAIN WITH GASKET GROOVE SECOND END
Tubing Wall Nominal Thickness for Which Designed0.250 INCHES FIRST END IN
Bolt Hole Nominal Diameter0.320 INCHES SECOND END IN
Nominal Thickness0.345 INCHES SECOND END IN
Connection TypeFLANGE SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-100-30953984 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Rbc Bearings Incorporated Div West Trenton Division
5315-00-463-52246127 INTERCHANGEABLE
Key
Industrial Technologies and Services Llc
5330-00-464-221627887B INTERCHANGEABLE
Seal,plain Encased
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
5955-00-525-5734154029P7 INTERCHANGEABLE
Crystal Unit,quartz
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5950-00-533-32659023774 INTERCHANGEABLE
Coil,radio Frequency
Us Army Aviation and Missile Command
4820-00-570-80006127 INTERCHANGEABLE
Stem,needle Valve
Avox Systems Inc Dba Avox Systems Inc
5330-01-201-36086127 INTERCHANGEABLE
Seal,plain
Eaton Corporation Div Fed
4720-01-441-3397 INTERCHANGEABLE
Tubing Assembly,nonmetallic
5310-01-602-96696127 INTERCHANGEABLE
Washer,flat
Harley Davidson Motor Co Inc
Cross-Reference Index
Part NumberManufacturer
6127 PRIMARY Kovatch Corp. (USA)
6127 Philadelphia Valve Co (USA)
Related Parts
3110-00-100-3095INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
3984
5315-00-463-5224INTERCHANGEABLE
KEY
6127
5330-00-464-2216INTERCHANGEABLE
SEAL,PLAIN ENCASED
27887B
5955-00-525-5734INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
154029P7
5950-00-533-3265INTERCHANGEABLE
COIL,RADIO FREQUENCY
9023774
4820-00-570-8000INTERCHANGEABLE
STEM,NEEDLE VALVE
6127
5330-01-201-3608INTERCHANGEABLE
SEAL,PLAIN
6127
4720-01-441-3397INTERCHANGEABLE
TUBING ASSEMBLY,NONMETALLIC
5310-01-602-9669INTERCHANGEABLE
WASHER,FLAT
6127

Frequently Asked Questions

What is NSN 4730-01-133-8022?

NSN 4730-01-133-8022 is a Adapter,straight,flange to Tube, manufactured by Kovatch Corp., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-133-8022?

NSN 4730-01-133-8022 has 2 cross-referenced part numbers: 6127 (Kovatch Corp.), 6127 (Philadelphia Valve Co).

What NSN replaces 4730-01-133-8022?

There are 9 known substitutes for 4730-01-133-8022: 3110-00-100-3095, 5315-00-463-5224, 5330-00-464-2216 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6127?

Key specifications for 6127: Nominal Width Across Flats: 5.625 INCHES SECOND END IN; Flange Shape: OCTAGON WITH HOLES SECOND END; Material: ALUMINUM ALLOY OVERALL; Connection Style: GROOVED (TUBE) 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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