PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20188Flange,pipe

Ocean Technology Inc · NSN 4730-01-230-8990 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-230-8990 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-230-8990. Primary manufacturer part number: 20188.
Features
  • Flange,pipe — FSC 4730
  • Style Designator: OVAL, ONE BOLT HOLE CIRCLE
  • Bolt Hole Quantity: 2
  • Bolt Circle Diameter: 0.903 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Ocean Technology Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Flange,pipe, cataloged under National Stock Number 4730-01-230-8990, 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 Ocean Technology Inc. Government technical data includes 3 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-230-8990
Primary Part Number20188
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerOcean Technology Inc
StatusACTIVE
Style DesignatorOVAL, ONE BOLT HOLE CIRCLE
Bolt Hole Quantity2
Bolt Circle Diameter0.903 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6220-00-026-477920188 INTERCHANGEABLE
Lens
Egs Electrical Group Appleton Div
2520-01-027-22983-0332 INTERCHANGEABLE
Spider,universal Joint,vehicular
Neapco Inc
4820-01-103-711120188 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3120-01-235-9730120-188 INTERCHANGEABLE
Bushing,sleeve
Prestolite Electric Inc
6520-01-265-632320188 INTERCHANGEABLE
Resin,restorative,dental
Kerr Corporation
Cross-Reference Index
Part NumberManufacturer
20188 Ocean Technology Inc (USA)
Related Parts
6220-00-026-4779INTERCHANGEABLE
LENS
20188
2520-01-027-2298INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
3-0332
4820-01-103-7111INTERCHANGEABLE
VALVE,SAFETY RELIEF
20188
3120-01-235-9730INTERCHANGEABLE
BUSHING,SLEEVE
120-188
6520-01-265-6323INTERCHANGEABLE
RESIN,RESTORATIVE,DENTAL
20188

Frequently Asked Questions

What is NSN 4730-01-230-8990?

NSN 4730-01-230-8990 is a Flange,pipe, manufactured by Ocean Technology Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-230-8990?

NSN 4730-01-230-8990 has 1 cross-referenced part number: 20188 (Ocean Technology Inc).

What NSN replaces 4730-01-230-8990?

There are 5 known substitutes for 4730-01-230-8990: 6220-00-026-4779, 2520-01-027-2298, 4820-01-103-7111 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20188?

Key specifications for 20188: Style Designator: OVAL, ONE BOLT HOLE CIRCLE; Special Features: SPLIT FLANGE; Bolt Hole Quantity: 2; Bolt Circle Diameter: 0.903 INCHES NOMINAL IN. 4 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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