PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-F-18180/3-01A01Flange,pipe

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-235-4075 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-235-4075 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-235-4075. Primary manufacturer part number: MIL-F-18180/3-01A01.
Features
  • Flange,pipe — FSC 4730
  • Flange Section Style: RAISED FACE, RAISED NECK
  • Bolt Circle Diameter: 2.375 INCHES NOMINAL IN
  • Raised Face Height: 0.062 INCHES NOMINAL IN
  • Bolt Hole Diameter: 0.625 INCHES NOMINAL IN
  • Material: STEEL
  • Maximum Operating Temp and Media for Which Designed: 500.0 FAHRENHEIT STEAM DEGF
  • Specification/standard Data: 80204-ASA B16.5/TABLE 13/14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-00-235-4075, 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 Specifications Promulgated by Military Departments/agencies 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-235-4075
Primary Part NumberMIL-F-18180/3-01A01
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Flange Section StyleRAISED FACE, RAISED NECK
Bolt Circle Diameter2.375 INCHES NOMINAL IN
Raised Face Height0.062 INCHES NOMINAL IN
Bolt Hole Diameter0.625 INCHES NOMINAL IN
MaterialSTEEL
Maximum Operating Temp and Media for Which Designed500.0 FAHRENHEIT STEAM DEGF
Specification/standard Data80204-ASA B16.5/TABLE 13/14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Operating Pressure and Type150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Neck Height0.188 INCHES NOMINAL IN
Bolt Hole Quantity4
Face Seating Surface ConditionMACHINED
Nominal Pipe Size for Which Designed0.500 INCHES IN
Flange Diameter3.500 INCHES NOMINAL IN
Thickness0.375 INCHES NOMINAL IN
Raised Face Diameter1.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-235-4077 INTERCHANGEABLE
Flange,pipe
4730-00-235-4078 INTERCHANGEABLE
Flange,pipe
4730-00-235-4081 INTERCHANGEABLE
Flange,pipe
4730-00-235-4082 INTERCHANGEABLE
Flange,pipe
4730-00-257-0124 INTERCHANGEABLE
Flange,pipe
Cross-Reference Index
Part NumberManufacturer
MIL-F-18180/3-01A01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
B16-5-1953TABLE21 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
Related Parts
4730-00-235-4077INTERCHANGEABLE
FLANGE,PIPE
4730-00-235-4078INTERCHANGEABLE
FLANGE,PIPE
4730-00-235-4081INTERCHANGEABLE
FLANGE,PIPE
4730-00-235-4082INTERCHANGEABLE
FLANGE,PIPE
4730-00-257-0124INTERCHANGEABLE
FLANGE,PIPE

Frequently Asked Questions

What is NSN 4730-00-235-4075?

NSN 4730-00-235-4075 is a Flange,pipe, manufactured by Military Specifications Promulgated by Military Departments/agencies 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 4730-00-235-4075?

NSN 4730-00-235-4075 has 2 cross-referenced part numbers: MIL-F-18180/3-01A01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B16-5-1953TABLE21 (American National Standards Institute Incorporated Dba American National Standards Institute).

What NSN replaces 4730-00-235-4075?

There are 5 known substitutes for 4730-00-235-4075: 4730-00-235-4077, 4730-00-235-4078, 4730-00-235-4081 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-F-18180/3-01A01?

Key specifications for MIL-F-18180/3-01A01: Flange Section Style: RAISED FACE, RAISED NECK; Bolt Circle Diameter: 2.375 INCHES NOMINAL IN; Raised Face Height: 0.062 INCHES NOMINAL IN; Bolt Hole Diameter: 0.625 INCHES NOMINAL IN. 16 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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