PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18004Tailpiece,union

Vapor Corp Sub of Brunswick Corp · NSN 4730-00-374-3440 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-374-3440 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-374-3440. Primary manufacturer part number: 18004.
Features
  • Tailpiece,union — FSC 4730
  • Thread Size: 0.500-14
  • End Connection Type: THREADED
  • Screw Thread Location: EXTERNAL
  • Material: COPPER ALLOY
  • Screw Thread Series Designator: NPT
  • Thread Direction: RIGHT-HAND
  • 2 verified cross-references
Applications
  • Applications requiring Copper Alloy construction
General Description

The Tailpiece,union, cataloged under National Stock Number 4730-00-374-3440, 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 Vapor Corp Sub of Brunswick Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-374-3440
Primary Part Number18004
Item NameTailpiece,union
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerVapor Corp Sub of Brunswick Corp
StatusACTIVE
Thread Size0.500-14
End Connection TypeTHREADED
Screw Thread LocationEXTERNAL
MaterialCOPPER ALLOY
Screw Thread Series DesignatorNPT
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-189-9249 INTERCHANGEABLE
Drill,twist
3040-01-292-429218004 INTERCHANGEABLE
Brake Band and Lining
Lake Shore Systems, Inc.
3010-01-314-438018004-1 INTERCHANGEABLE
Coupling,shaft,rigid
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
3040-01-314-780418004-7 INTERCHANGEABLE
Shaft,shouldered
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
3040-01-314-780518004-8 INTERCHANGEABLE
Shaft,shouldered
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
3950-01-330-885818004-4 INTERCHANGEABLE
Slider Assembly
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
5340-01-732-937218004 INTERCHANGEABLE
Plate,mending
Rbc Transport Dynamics Corp Div Rbc Transport Dynamics
Cross-Reference Index
Part NumberManufacturer
18004 Vapor Corp Sub of Brunswick Corp (USA)
100800-69 Vapor Corp Sub of Brunswick Corp (USA)
Related Parts
5133-00-189-9249INTERCHANGEABLE
DRILL,TWIST
3040-01-292-4292INTERCHANGEABLE
BRAKE BAND AND LINING
18004
3010-01-314-4380INTERCHANGEABLE
COUPLING,SHAFT,RIGID
18004-1
3040-01-314-7804INTERCHANGEABLE
SHAFT,SHOULDERED
18004-7
3040-01-314-7805INTERCHANGEABLE
SHAFT,SHOULDERED
18004-8
3950-01-330-8858INTERCHANGEABLE
SLIDER ASSEMBLY
18004-4
5340-01-732-9372INTERCHANGEABLE
PLATE,MENDING
18004

Frequently Asked Questions

What is NSN 4730-00-374-3440?

NSN 4730-00-374-3440 is a Tailpiece,union, manufactured by Vapor Corp Sub of Brunswick Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-374-3440?

NSN 4730-00-374-3440 has 2 cross-referenced part numbers: 18004 (Vapor Corp Sub of Brunswick Corp), 100800-69 (Vapor Corp Sub of Brunswick Corp).

What NSN replaces 4730-00-374-3440?

There are 7 known substitutes for 4730-00-374-3440: 5133-00-189-9249, 3040-01-292-4292, 3010-01-314-4380 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18004?

Key specifications for 18004: Thread Size: 0.500-14; End Connection Type: THREADED; Screw Thread Location: EXTERNAL; Material: COPPER ALLOY. 7 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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