PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221337Flange,pipe

Curtiss-Wright Controls, Inc. Div Actuation Division · NSN 4730-00-202-9889 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-202-9889 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-202-9889. Primary manufacturer part number: 221337.
Features
  • Flange,pipe — FSC 4730
  • Bolt Circle Diameter: 1.750 INCHES NOMINAL IN
  • Nominal Pipe Size for Which Designed: 1.000 INCHES IN
  • Material: STEEL
  • Flange End Radius: 0.220 INCHES NOMINAL IN
  • Flange Length: 2.190 INCHES NOMINAL IN
  • Thickness: 0.100 INCHES NOMINAL IN
  • Bolt Hole Diameter: 0.940 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 4730-00-202-9889, 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 Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-202-9889
Primary Part Number221337
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCurtiss-Wright Controls, Inc. Div Actuation Division
StatusCANCELLED
Bolt Circle Diameter1.750 INCHES NOMINAL IN
Nominal Pipe Size for Which Designed1.000 INCHES IN
MaterialSTEEL
Flange End Radius0.220 INCHES NOMINAL IN
Flange Length2.190 INCHES NOMINAL IN
Thickness0.100 INCHES NOMINAL IN
Bolt Hole Diameter0.940 INCHES NOMINAL IN
Face Seating Surface ConditionMACHINED
Bolt Hole Quantity2
Style DesignatorOVAL, ONE BOLT HOLE CIRCLE
Flange Width1.250 INCHES NOMINAL IN
Flange Section StylePLAIN FACE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5950-00-078-2242 INTERCHANGEABLE
Transformer,power
4730-00-273-6057187396 INTERCHANGEABLE
Coupling,pipe
Rolls-Royce Solutions America Inc
3110-00-554-38132200-144252ALTCPC61 INTERCHANGEABLE
Bearing,ball,linear Motion
Naval Ship Systems Command
Cross-Reference Index
Part NumberManufacturer
221337 PRIMARY Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
Related Parts
5950-00-078-2242INTERCHANGEABLE
TRANSFORMER,POWER
4730-00-273-6057INTERCHANGEABLE
COUPLING,PIPE
187396
3110-00-554-3813INTERCHANGEABLE
BEARING,BALL,LINEAR MOTION
2200-144252ALTCPC61

Frequently Asked Questions

What is NSN 4730-00-202-9889?

NSN 4730-00-202-9889 is a Flange,pipe, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-202-9889?

NSN 4730-00-202-9889 has 1 cross-referenced part number: 221337 (Curtiss-Wright Controls, Inc. Div Actuation Division).

What NSN replaces 4730-00-202-9889?

There are 3 known substitutes for 4730-00-202-9889: 5950-00-078-2242, 4730-00-273-6057, 3110-00-554-3813. Verify interchangeability with system specifications before substitution.

What are the specifications of 221337?

Key specifications for 221337: Bolt Circle Diameter: 1.750 INCHES NOMINAL IN; Nominal Pipe Size for Which Designed: 1.000 INCHES IN; Material: STEEL; Flange End Radius: 0.220 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-202-9889 still in active supply?

NSN 4730-00-202-9889 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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