PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-F-18180/1Flange,pipe

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-183-5948 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-183-5948 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-183-5948. Primary manufacturer part number: MIL-F-18180/1.
Features
  • Flange,pipe — FSC 4730
  • Raised Face Height: 0.062 INCHES NOMINAL IN
  • Flange Diameter: 8.500 INCHES NOMINAL IN
  • Bolt Hole Quantity: 8
  • Thickness: 0.940 INCHES NOMINAL IN
  • Material: STEEL
  • Specification/standard Data: 80204-B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81349-MIL-F-18180/1 GOVERNMENT SPECIFICATION
  • Nondefinitive Spec/std Data: 8 TABLE AND 9 TABLE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-01-183-5948, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 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
NSN4730-01-183-5948
Primary Part NumberMIL-F-18180/1
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
Raised Face Height0.062 INCHES NOMINAL IN
Flange Diameter8.500 INCHES NOMINAL IN
Bolt Hole Quantity8
Thickness0.940 INCHES NOMINAL IN
MaterialSTEEL
Specification/standard Data80204-B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81349-MIL-F-18180/1 GOVERNMENT SPECIFICATION
Nondefinitive Spec/std Data8 TABLE AND 9 TABLE
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Raised Face Diameter4.810 INCHES NOMINAL IN
Face Seating Surface ConditionMACHINED
Nominal Pipe Size for Which Designed3.500 INCHES IN
Neck Height1.870 INCHES NOMINAL IN
Bolt Circle Diameter7.000 INCHES NOMINAL IN
Flange Section StyleRAISED FACE, WELDING NECK
Bolt Hole Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-996-02505244 INTERCHANGEABLE
Flange,pipe
Flowserve Inc
4730-01-185-6085 INTERCHANGEABLE
Flange,pipe
4730-01-185-6086 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
MIL-F-18180/1 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)
M1810-009A01A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M18180/1 009A01A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-996-0250INTERCHANGEABLE
FLANGE,PIPE
5244
4730-01-185-6085INTERCHANGEABLE
FLANGE,PIPE
4730-01-185-6086INTERCHANGEABLE
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 4730-01-183-5948?

NSN 4730-01-183-5948 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 4730-01-183-5948?

NSN 4730-01-183-5948 has 4 cross-referenced part numbers: MIL-F-18180/1 (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), M1810-009A01A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M18180/1 009A01A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-183-5948?

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

What are the specifications of MIL-F-18180/1?

Key specifications for MIL-F-18180/1: Raised Face Height: 0.062 INCHES NOMINAL IN; Flange Diameter: 8.500 INCHES NOMINAL IN; Bolt Hole Quantity: 8; Thickness: 0.940 INCHES NOMINAL IN. 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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