PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12J50Flange,pipe

Huntington Ingalls Inc Div Newport News Shipbuilding · NSN 4730-00-967-4206 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-967-4206 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-967-4206. Primary manufacturer part number: 12J50.
Features
  • Flange,pipe — FSC 4730
  • Bolt Circle Diameter: 4.000 INCHES NOMINAL IN
  • Flange Diameter: 4.500 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Style Designator: ROUND, ONE BOLT HOLE CIRCLE
  • Thickness: 0.438 INCHES NOMINAL IN
  • Bolt Hole Quantity: 4
  • Bolt Hole Diameter: 0.500 INCHES NOMINAL IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-00-967-4206, 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 Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 9 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-967-4206
Primary Part Number12J50
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHuntington Ingalls Inc Div Newport News Shipbuilding
StatusACTIVE
Bolt Circle Diameter4.000 INCHES NOMINAL IN
Flange Diameter4.500 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Thickness0.438 INCHES NOMINAL IN
Bolt Hole Quantity4
Bolt Hole Diameter0.500 INCHES NOMINAL IN
Face Seating Surface ConditionGROUND
Flange Section StylePLAIN FACE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4810-00-793-740120217-4 INTERCHANGEABLE
Valve,solenoid
Langley Corp
5340-00-925-822844-1-16-0 INTERCHANGEABLE
Fastener,pawl
Southco Inc
4730-00-967-420503J50 INTERCHANGEABLE
Flange,pipe
Huntington Ingalls Inc Div Newport News Shipbuilding
4730-00-967-4209202174 SIZE40, TYPE50, ITEM60 INTERCHANGEABLE
Flange,pipe
Huntington Ingalls Inc Div Newport News Shipbuilding
4730-00-967-4212202174 INTERCHANGEABLE
Flange,pipe
Huntington Ingalls Inc Div Newport News Shipbuilding
4730-00-967-4214202174 SIZE 50,TYPE J-61,ITEM 86 INTERCHANGEABLE
Flange,pipe
Huntington Ingalls Inc Div Newport News Shipbuilding
5331-01-019-2448MS28775-249 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
1680-01-536-5729202174 INTERCHANGEABLE
Harness,safety,personnel,hoistin
Cmc Rescue, Inc.
Cross-Reference Index
Part NumberManufacturer
12J50 PRIMARY Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
202174 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
202174PCJ5054 Derbyshire Machine & Tool Co (USA)
202174PCJ5054 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
Related Parts
4810-00-793-7401INTERCHANGEABLE
VALVE,SOLENOID
20217-4
5340-00-925-8228INTERCHANGEABLE
FASTENER,PAWL
44-1-16-0
4730-00-967-4205INTERCHANGEABLE
FLANGE,PIPE
03J50
4730-00-967-4209INTERCHANGEABLE
FLANGE,PIPE
202174 SIZE40, TYPE50, ITEM60
4730-00-967-4212INTERCHANGEABLE
FLANGE,PIPE
202174
4730-00-967-4214INTERCHANGEABLE
FLANGE,PIPE
202174 SIZE 50,TYPE J-61,ITEM 86
5331-01-019-2448INTERCHANGEABLE
O-RING
MS28775-249
1680-01-536-5729INTERCHANGEABLE
HARNESS,SAFETY,PERSONNEL,HOISTIN
202174

Frequently Asked Questions

What is NSN 4730-00-967-4206?

NSN 4730-00-967-4206 is a Flange,pipe, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-967-4206?

NSN 4730-00-967-4206 has 4 cross-referenced part numbers: 12J50 (Huntington Ingalls Inc Div Newport News Shipbuilding), 202174 (Huntington Ingalls Inc Div Newport News Shipbuilding), 202174PCJ5054 (Derbyshire Machine & Tool Co), 202174PCJ5054 (Huntington Ingalls Inc Div Newport News Shipbuilding).

What NSN replaces 4730-00-967-4206?

There are 8 known substitutes for 4730-00-967-4206: 4810-00-793-7401, 5340-00-925-8228, 4730-00-967-4205 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12J50?

Key specifications for 12J50: Bolt Circle Diameter: 4.000 INCHES NOMINAL IN; Flange Diameter: 4.500 INCHES NOMINAL IN; Material: COPPER ALLOY; Style Designator: ROUND, ONE BOLT HOLE CIRCLE. 9 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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