PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3SCoupling

Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division · NSN 4730-01-199-1818 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-199-1818 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-199-1818. Primary manufacturer part number: 3S.
Features
  • Coupling — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Coupling, cataloged under National Stock Number 4730-01-199-1818, 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 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCoupling
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersControl Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (CAGE 16603); Control Flow, Inc. Dba Control Flow Inc (CAGE 3X894)
Technical Specifications
ParameterValue
NSN4730-01-199-1818
Primary Part Number3S
Item NameCoupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerControl Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3460-00-230-2293 INTERCHANGEABLE
Holder,cutting Tool
6635-00-530-0009 INTERCHANGEABLE
Balancing Machine,dynamic-Static
5130-00-595-8339AVC12A1 INTERCHANGEABLE
Hammer,pneumatic,portable
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
5325-00-639-0359 INTERCHANGEABLE
Stud,snapslide Fastener
5640-00-808-2562 INTERCHANGEABLE
Insulation,thermal
5340-00-911-817621407 INTERCHANGEABLE
Plug Assembly,sealing
Moog Inc. Dba Ampac-Isp Corp
4820-01-063-48643-S-10 INTERCHANGEABLE
Seat,valve
Meyer Company, the
6645-01-167-5814AX605SBLKIT INTERCHANGEABLE
Stopwatch
Accusplit Inc
6525-01-518-93133S INTERCHANGEABLE
Probe,ultrasonic Unit,diagnostic
Ge Medical Systems Business Group
5998-01-603-83623S INTERCHANGEABLE
Circuit Card Assembly
Us Tech Inc Dba Us Tech Inc
Cross-Reference Index
Part NumberManufacturer
3S Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
3S Control Flow, Inc. Dba Control Flow Inc (USA)
Related Parts
3460-00-230-2293INTERCHANGEABLE
HOLDER,CUTTING TOOL
6635-00-530-0009INTERCHANGEABLE
BALANCING MACHINE,DYNAMIC-STATIC
5130-00-595-8339INTERCHANGEABLE
HAMMER,PNEUMATIC,PORTABLE
AVC12A1
5325-00-639-0359INTERCHANGEABLE
STUD,SNAPSLIDE FASTENER
5640-00-808-2562INTERCHANGEABLE
INSULATION,THERMAL
5340-00-911-8176INTERCHANGEABLE
PLUG ASSEMBLY,SEALING
21407
4820-01-063-4864INTERCHANGEABLE
SEAT,VALVE
3-S-10
6645-01-167-5814INTERCHANGEABLE
STOPWATCH
AX605SBLKIT
6525-01-518-9313INTERCHANGEABLE
PROBE,ULTRASONIC UNIT,DIAGNOSTIC
3S
5998-01-603-8362INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3S

Frequently Asked Questions

What is NSN 4730-01-199-1818?

NSN 4730-01-199-1818 is a Coupling, manufactured by Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-199-1818?

NSN 4730-01-199-1818 has 2 cross-referenced part numbers: 3S (Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division), 3S (Control Flow, Inc. Dba Control Flow Inc).

What NSN replaces 4730-01-199-1818?

There are 10 known substitutes for 4730-01-199-1818: 3460-00-230-2293, 6635-00-530-0009, 5130-00-595-8339 and 7 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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