PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

181-M2X1-1/2Bushing,pipe

Stockham Valves and Fittings Inc · NSN 4730-01-347-0002 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-347-0002 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-347-0002. Primary manufacturer part number: 181-M2X1-1/2.
Features
  • Bushing,pipe — FSC 4730
  • Internal Thread Direction: RIGHT-HAND
  • Material: IRON CAST
  • Style Designator: OUTSIDE HEXAGON
  • Internal Screw Thread Series Designator: NPT
  • External Screw Thread Series Designator: NPT
  • External Thread Direction: RIGHT-HAND
  • External Thread Size: 2-11-1/2
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Cast construction
General Description

The Bushing,pipe, cataloged under National Stock Number 4730-01-347-0002, 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 Stockham Valves and Fittings Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN4730-01-347-0002
Primary Part Number181-M2X1-1/2
Item NameBushing,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerStockham Valves and Fittings Inc
StatusACTIVE
Internal Thread DirectionRIGHT-HAND
MaterialIRON CAST
Style DesignatorOUTSIDE HEXAGON
Internal Screw Thread Series DesignatorNPT
External Screw Thread Series DesignatorNPT
External Thread DirectionRIGHT-HAND
External Thread Size2-11-1/2
Internal Thread Size11/2-11-1/2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5920-00-556-99871105500 INTERCHANGEABLE
Fuse Link,electrical
Westinghouse Electric Corp
2920-01-149-8606GM-500-12A00 INTERCHANGEABLE
Generator,engine Accessory
Machinery Components Inc
Cross-Reference Index
Part NumberManufacturer
1105500 Maxon Industries, Inc. (USA)
181-M2X1-1/2 PRIMARY Stockham Valves and Fittings Inc (USA)
Related Parts
5920-00-556-9987INTERCHANGEABLE
FUSE LINK,ELECTRICAL
1105500
2920-01-149-8606INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
GM-500-12A00

Frequently Asked Questions

What is NSN 4730-01-347-0002?

NSN 4730-01-347-0002 is a Bushing,pipe, manufactured by Stockham Valves and Fittings Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-347-0002?

NSN 4730-01-347-0002 has 2 cross-referenced part numbers: 1105500 (Maxon Industries, Inc.), 181-M2X1-1/2 (Stockham Valves and Fittings Inc).

What NSN replaces 4730-01-347-0002?

There are 2 known substitutes for 4730-01-347-0002: 5920-00-556-9987, 2920-01-149-8606. Verify interchangeability with system specifications before substitution.

What are the specifications of 181-M2X1-1/2?

Key specifications for 181-M2X1-1/2: Internal Thread Direction: RIGHT-HAND; Material: IRON CAST; Style Designator: OUTSIDE HEXAGON; Internal Screw Thread Series Designator: NPT. 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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