PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B16.18 1 1/4X1X3/4Tee,tube

The American Society of Mechanical Engineers · NSN 4730-00-328-5229 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-328-5229 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-328-5229. Primary manufacturer part number: B16.18 1 1/4X1X3/4.
Features
  • Tee,tube — FSC 4730
  • Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN
  • Material: COPPER ALLOY OVERALL
  • Leg Length: 2.000 INCHES NOMINAL ALL ENDS IN
  • Nominal Outside Diameter Tube Accommodated: 1.000 INCHES SECOND END IN
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
  • Connection Style: SOCKET (TUBE) ALL ENDS
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES THIRD END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Tee,tube, cataloged under National Stock Number 4730-00-328-5229, 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 The American Society of Mechanical Engineers. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-328-5229
Primary Part NumberB16.18 1 1/4X1X3/4
Item NameTee,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST END IN
MaterialCOPPER ALLOY OVERALL
Leg Length2.000 INCHES NOMINAL ALL ENDS IN
Nominal Outside Diameter Tube Accommodated1.000 INCHES SECOND END IN
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Connection StyleSOCKET (TUBE) ALL ENDS
Nominal Outside Diameter Tube Accommodated0.750 INCHES THIRD END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-059-7220 INTERCHANGEABLE
Coupling,tube
4730-00-202-8416 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-278-0292 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-289-4825 INTERCHANGEABLE
Coupling,tube
4730-00-324-3459 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-328-5193 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-328-5198 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-541-4753 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-614-6051 INTERCHANGEABLE
Tee,pipe to Tube
4730-00-689-8534 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Cross-Reference Index
Part NumberManufacturer
B16.18 1 1/4X1X3/4 PRIMARY The American Society of Mechanical Engineers (USA)
ANSI B16.18 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
B16.18 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
ASME B16.18-2018 The American Society of Mechanical Engineers (USA)
Related Parts
4730-00-059-7220INTERCHANGEABLE
COUPLING,TUBE
4730-00-202-8416INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-278-0292INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-289-4825INTERCHANGEABLE
COUPLING,TUBE
4730-00-324-3459INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-328-5193INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-328-5198INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-541-4753INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-614-6051INTERCHANGEABLE
TEE,PIPE TO TUBE
4730-00-689-8534INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-816-0764INTERCHANGEABLE
TEE,TUBE
A1511
4730-00-841-8431INTERCHANGEABLE
ELBOW,PIPE TO TUBE

Frequently Asked Questions

What is NSN 4730-00-328-5229?

NSN 4730-00-328-5229 is a Tee,tube, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-328-5229?

NSN 4730-00-328-5229 has 4 cross-referenced part numbers: B16.18 1 1/4X1X3/4 (The American Society of Mechanical Engineers), ANSI B16.18 (American National Standards Institute Incorporated Dba American National Standards Institute), B16.18 (American National Standards Institute Incorporated Dba American National Standards Institute), ASME B16.18-2018 (The American Society of Mechanical Engineers).

What NSN replaces 4730-00-328-5229?

There are 12 known substitutes for 4730-00-328-5229: 4730-00-059-7220, 4730-00-202-8416, 4730-00-278-0292 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B16.18 1 1/4X1X3/4?

Key specifications for B16.18 1 1/4X1X3/4: Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN; Material: COPPER ALLOY OVERALL; Leg Length: 2.000 INCHES NOMINAL ALL ENDS IN; Nominal Outside Diameter Tube Accommodated: 1.000 INCHES SECOND END IN. 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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