PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-6S0Flange,pipe

Associated Steel Company · NSN 4730-00-844-3267 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-844-3267 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-844-3267. Primary manufacturer part number: 1-6S0.
Features
  • Flange,pipe — FSC 4730
  • Raised Face Diameter: 8.500 INCHES NOMINAL IN
  • Material: STEEL
  • Thickness: 1.000 INCHES NOMINAL IN
  • Flange Diameter: 11.000 INCHES NOMINAL IN
  • Bolt Circle Diameter: 9.500 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 13 TABLE AND 14 TABLE
  • Specification/standard Data: 81349-MIL-F-18180 GOVERNMENT SPECIFICATION
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-00-844-3267, 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 Associated Steel Company. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-844-3267
Primary Part Number1-6S0
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAssociated Steel Company
StatusACTIVE
Raised Face Diameter8.500 INCHES NOMINAL IN
MaterialSTEEL
Thickness1.000 INCHES NOMINAL IN
Flange Diameter11.000 INCHES NOMINAL IN
Bolt Circle Diameter9.500 INCHES NOMINAL IN
Nondefinitive Spec/std Data13 TABLE AND 14 TABLE
Specification/standard Data81349-MIL-F-18180 GOVERNMENT SPECIFICATION
Operating Pressure and Type150.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Raised Face Height0.062 INCHES NOMINAL IN
Flange Section StyleRAISED FACE, SOCKET NECK
Nominal Pipe Size for Which Designed6.000 INCHES IN
Neck Height0.562 INCHES NOMINAL IN
Bolt Hole Diameter0.750 INCHES NOMINAL IN
Bolt Hole Quantity8
Socket Diameter5.047 INCHES NOMINAL IN
Face Seating Surface ConditionMACHINED
Socket Depth1.313 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-00-193-6973 INTERCHANGEABLE
Flange,pipe
4730-00-256-8506 INTERCHANGEABLE
Flange,pipe
4730-00-845-4993 INTERCHANGEABLE
Flange,pipe
4730-01-184-9485 INTERCHANGEABLE
Flange,pipe
Cross-Reference Index
Part NumberManufacturer
M18180/3-12A01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-18180C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1-6S0 PRIMARY Associated Steel Company (USA)
Related Parts
4730-00-193-6973INTERCHANGEABLE
FLANGE,PIPE
4730-00-256-8506INTERCHANGEABLE
FLANGE,PIPE
4730-00-845-4993INTERCHANGEABLE
FLANGE,PIPE
4730-01-184-9485INTERCHANGEABLE
FLANGE,PIPE

Frequently Asked Questions

What is NSN 4730-00-844-3267?

NSN 4730-00-844-3267 is a Flange,pipe, manufactured by Associated Steel Company, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-844-3267?

NSN 4730-00-844-3267 has 3 cross-referenced part numbers: M18180/3-12A01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-18180C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1-6S0 (Associated Steel Company).

What NSN replaces 4730-00-844-3267?

There are 4 known substitutes for 4730-00-844-3267: 4730-00-193-6973, 4730-00-256-8506, 4730-00-845-4993 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-6S0?

Key specifications for 1-6S0: Raised Face Diameter: 8.500 INCHES NOMINAL IN; Material: STEEL; Thickness: 1.000 INCHES NOMINAL IN; Flange Diameter: 11.000 INCHES NOMINAL IN. 18 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