PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LE181/30Adapter,straight,pipe to Tube

Ulstein Bergen A/s · NSN 4730-01-303-1232 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-303-1232 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-303-1232. Primary manufacturer part number: LE181/30.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Style: GROOVED (TUBE) FIRST END
  • Connection Type: UNTHREADED EXTERNAL TUBE FIRST END
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Nominal Overall Length: 50.0 MILLIMETERS MM
  • Thread Series Designator: BSP.TR EXT SECOND END
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-303-1232, 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 Ulstein Bergen A/s. Government technical data includes 7 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-303-1232
Primary Part NumberLE181/30
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerUlstein Bergen A/s
StatusACTIVE
Connection StylePLAIN (PIPE) SECOND END
Connection StyleGROOVED (TUBE) FIRST END
Connection TypeUNTHREADED EXTERNAL TUBE FIRST END
Nominal Thread Size0.500 INCHES SECOND END IN
Nominal Overall Length50.0 MILLIMETERS MM
Thread Series DesignatorBSP.TR EXT SECOND END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-077-1988 INTERCHANGEABLE
Valve,check
5315-01-644-870990412 INTERCHANGEABLE
Pin,straight,headless
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
LE181/30 Ulstein Bergen A/s (NOR)
90412 Kongsberg Maritime Inc Dba Kongsberg Maritime Inc (USA)
90412 Rolls-Royce Marine North America Inc (USA)
090412 Kongsberg Maritime Inc Dba Kongsberg Maritime Inc (USA)
90412 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
90412 Ulstein Bergen A/s (NOR)
Related Parts
4820-01-077-1988INTERCHANGEABLE
VALVE,CHECK
5315-01-644-8709INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
90412

Frequently Asked Questions

What is NSN 4730-01-303-1232?

NSN 4730-01-303-1232 is a Adapter,straight,pipe to Tube, manufactured by Ulstein Bergen A/s, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-303-1232?

NSN 4730-01-303-1232 has 6 cross-referenced part numbers: LE181/30 (Ulstein Bergen A/s), 90412 (Kongsberg Maritime Inc Dba Kongsberg Maritime Inc), 90412 (Rolls-Royce Marine North America Inc), 090412 (Kongsberg Maritime Inc Dba Kongsberg Maritime Inc), 90412 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)) and 1 more.

What NSN replaces 4730-01-303-1232?

There are 2 known substitutes for 4730-01-303-1232: 4820-01-077-1988, 5315-01-644-8709. Verify interchangeability with system specifications before substitution.

What are the specifications of LE181/30?

Key specifications for LE181/30: Connection Style: PLAIN (PIPE) SECOND END; Connection Style: GROOVED (TUBE) FIRST END; Connection Type: UNTHREADED EXTERNAL TUBE FIRST END; Nominal Thread Size: 0.500 INCHES SECOND END IN. 8 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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