PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B23XEFlange,pipe

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-185-6086 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-185-6086 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-185-6086. Primary manufacturer part number: B23XE.
Features
  • Flange,pipe — FSC 4730
  • Bolt Hole Diameter: 0.750 INCHES NOMINAL IN
  • Raised Face Height: 0.062 INCHES NOMINAL IN
  • Flange Diameter: 6.000 INCHES NOMINAL IN
  • Bolt Hole Quantity: 4
  • Specification/standard Data: 80204-ANSI B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81349-MIL-F-18180/1 GOVERNMENT SPECIFICATION
  • Style Designator: ROUND, ONE BOLT HOLE CIRCLE
  • Material Document and Classification: ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-01-185-6086, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-185-6086
Primary Part NumberB23XE
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Bolt Hole Diameter0.750 INCHES NOMINAL IN
Raised Face Height0.062 INCHES NOMINAL IN
Flange Diameter6.000 INCHES NOMINAL IN
Bolt Hole Quantity4
Specification/standard Data80204-ANSI B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81349-MIL-F-18180/1 GOVERNMENT SPECIFICATION
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Material Document and ClassificationASTM A105 ASSN STD SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std Data9 TABLE AND 2 SIZE AND 40 SCHEDULE
MaterialSTEEL
Face Seating Surface ConditionGROUND
Raised Face Diameter3.060 INCHES NOMINAL IN
Nominal Pipe Size for Which Designed2.000 INCHES IN
Neck Height1.750 INCHES NOMINAL IN
Thickness0.688 INCHES NOMINAL IN
Bolt Circle Diameter4.750 INCHES NOMINAL IN
Flange Section StyleRAISED FACE, WELDING NECK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-996-02505244 INTERCHANGEABLE
Flange,pipe
Flowserve Inc
4730-01-183-5948 INTERCHANGEABLE
Flange,pipe
4730-01-185-6085 INTERCHANGEABLE
Flange,pipe
4730-01-187-1039 INTERCHANGEABLE
Flange,pipe
4730-01-188-1880 INTERCHANGEABLE
Flange,pipe
4730-01-313-5440 INTERCHANGEABLE
Flange,pipe
Cross-Reference Index
Part NumberManufacturer
B23XE Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-18180/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M18180/1-006A01A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
B16.5 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
Related Parts
4730-00-996-0250INTERCHANGEABLE
FLANGE,PIPE
5244
4730-01-183-5948INTERCHANGEABLE
FLANGE,PIPE
4730-01-185-6085INTERCHANGEABLE
FLANGE,PIPE
4730-01-187-1039INTERCHANGEABLE
FLANGE,PIPE
4730-01-188-1880INTERCHANGEABLE
FLANGE,PIPE
4730-01-313-5440INTERCHANGEABLE
FLANGE,PIPE

Frequently Asked Questions

What is NSN 4730-01-185-6086?

NSN 4730-01-185-6086 is a Flange,pipe, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-185-6086?

NSN 4730-01-185-6086 has 4 cross-referenced part numbers: B23XE (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-18180/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M18180/1-006A01A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B16.5 (American National Standards Institute Incorporated Dba American National Standards Institute).

What NSN replaces 4730-01-185-6086?

There are 6 known substitutes for 4730-01-185-6086: 4730-00-996-0250, 4730-01-183-5948, 4730-01-185-6085 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B23XE?

Key specifications for B23XE: Bolt Hole Diameter: 0.750 INCHES NOMINAL IN; Raised Face Height: 0.062 INCHES NOMINAL IN; Flange Diameter: 6.000 INCHES NOMINAL IN; Bolt Hole Quantity: 4. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com