PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16-8INFlange,pipe

Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy · NSN 4730-00-193-6973 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-193-6973 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-193-6973. Primary manufacturer part number: 16-8IN.
Features
  • Flange,pipe — FSC 4730
  • Maximum Operating Temp and Media for Which Designed: 500.0 FAHRENHEIT STEAM DEGF
  • Material: STEEL
  • Style Designator: ROUND, ONE BOLT HOLE CIRCLE
  • Operating Pressure and Type: 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
  • Specification/standard Data: 81349-MIL-F-18180 GOVERNMENT SPECIFICATION
  • Nondefinitive Spec/std Data: 13 TABLE AND 14 TABLE
  • Neck Height: 0.625 INCHES NOMINAL IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-00-193-6973, 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 Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-193-6973
Primary Part Number16-8IN
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAti Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
StatusCANCELLED
Maximum Operating Temp and Media for Which Designed500.0 FAHRENHEIT STEAM DEGF
MaterialSTEEL
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Operating Pressure and Type150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Specification/standard Data81349-MIL-F-18180 GOVERNMENT SPECIFICATION
Nondefinitive Spec/std Data13 TABLE AND 14 TABLE
Neck Height0.625 INCHES NOMINAL IN
Bolt Circle Diameter11.750 INCHES NOMINAL IN
Bolt Hole Quantity8
Raised Face Diameter10.625 INCHES NOMINAL IN
Nominal Pipe Size for Which Designed8.000 INCHES IN
Thickness1.062 INCHES NOMINAL IN
Raised Face Height0.062 INCHES NOMINAL IN
Face Seating Surface ConditionMACHINED
Bolt Hole Diameter0.875 INCHES NOMINAL IN
Flange Diameter13.500 INCHES NOMINAL IN
Flange Section StyleRAISED FACE, RAISED NECK
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4730-00-256-8506 INTERCHANGEABLE
Flange,pipe
4730-00-844-32671-6S0 INTERCHANGEABLE
Flange,pipe
Associated Steel Company
4730-00-845-4993 INTERCHANGEABLE
Flange,pipe
4010-00-933-7893 INTERCHANGEABLE
Chain,weldless
4730-01-184-9485 INTERCHANGEABLE
Flange,pipe
Cross-Reference Index
Part NumberManufacturer
16-8IN Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy (USA)
M18180/3-13A01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
50 Tube Turns Technologies Inc (USA)
MIL-F-18180C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ASME B16.5 The American Society of Mechanical Engineers (USA)
50 8IN Tube Turns Technologies Inc (USA)
Related Parts
4730-00-256-8506INTERCHANGEABLE
FLANGE,PIPE
4730-00-844-3267INTERCHANGEABLE
FLANGE,PIPE
1-6S0
4730-00-845-4993INTERCHANGEABLE
FLANGE,PIPE
4010-00-933-7893INTERCHANGEABLE
CHAIN,WELDLESS
4730-01-184-9485INTERCHANGEABLE
FLANGE,PIPE

Frequently Asked Questions

What is NSN 4730-00-193-6973?

NSN 4730-00-193-6973 is a Flange,pipe, manufactured by Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-193-6973?

NSN 4730-00-193-6973 has 6 cross-referenced part numbers: 16-8IN (Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy), M18180/3-13A01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 50 (Tube Turns Technologies Inc), MIL-F-18180C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ASME B16.5 (The American Society of Mechanical Engineers) and 1 more.

What NSN replaces 4730-00-193-6973?

There are 5 known substitutes for 4730-00-193-6973: 4730-00-256-8506, 4730-00-844-3267, 4730-00-845-4993 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16-8IN?

Key specifications for 16-8IN: Maximum Operating Temp and Media for Which Designed: 500.0 FAHRENHEIT STEAM DEGF; Material: STEEL; Style Designator: ROUND, ONE BOLT HOLE CIRCLE; Operating Pressure and Type: 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-193-6973 still in active supply?

NSN 4730-00-193-6973 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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