PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

973B197H01Plug,pipe

Northrop Grumman Systems Corporation Dba Electronic Systems · NSN 4730-00-289-5943 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-289-5943 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-289-5943. Primary manufacturer part number: 973B197H01.
Features
  • Plug,pipe — FSC 4730
  • Connection Style: PLAIN
  • Head Type: SOLID
  • Material: COPPER ALLOY OVERALL
  • Thread Series Designator: NPTF EXTERNAL
  • Thread Direction: RIGHT-HAND EXTERNAL
  • Nominal Pipe Size for Which Designed: 0.750 INCHES IN
  • Body Type: SOLID
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Plug,pipe, cataloged under National Stock Number 4730-00-289-5943, 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 Northrop Grumman Systems Corporation Dba Electronic Systems. Government technical data includes 9 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-289-5943
Primary Part Number973B197H01
Item NamePlug,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Electronic Systems
StatusCANCELLED
Connection StylePLAIN
Head TypeSOLID
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorNPTF EXTERNAL
Thread DirectionRIGHT-HAND EXTERNAL
Nominal Pipe Size for Which Designed0.750 INCHES IN
Body TypeSOLID
Nominal Thread Size0.750 INCHES EXTERNAL IN
Drive End StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3110-00-198-1007QA62605 INTERCHANGEABLE
Roller,bearing
Timken Aerospace, Inc Dba Torrington Product
5360-00-546-09342547999 INTERCHANGEABLE
Spring,helical,compression
Kitco Llc
5985-01-054-47468557P2 INTERCHANGEABLE
Attenuator,fixed
General Microwave Corporation Div Kratos Microwave Electronics
5330-01-330-96833886 INTERCHANGEABLE
Retainer,packing
Howell Laboratories Inc Dba Howell Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
121-B-12 Imperial (USA)
7121B1-4 Imperial (USA)
973B197H01 PRIMARY Northrop Grumman Systems Corporation Dba Electronic Systems (USA)
1-1/2IN-PLUG Spirax Sarco Inc Dba Spirax Sarco (USA)
3886 Alter Harry Co the Div of T E C (USA)
BT1 1-2 PLUG Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
3110-00-198-1007INTERCHANGEABLE
ROLLER,BEARING
QA62605
5360-00-546-0934INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2547999
5985-01-054-4746INTERCHANGEABLE
ATTENUATOR,FIXED
8557P2
5330-01-330-9683INTERCHANGEABLE
RETAINER,PACKING
3886

Frequently Asked Questions

What is NSN 4730-00-289-5943?

NSN 4730-00-289-5943 is a Plug,pipe, manufactured by Northrop Grumman Systems Corporation Dba Electronic Systems, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-289-5943?

NSN 4730-00-289-5943 has 6 cross-referenced part numbers: 121-B-12 (Imperial), 7121B1-4 (Imperial), 973B197H01 (Northrop Grumman Systems Corporation Dba Electronic Systems), 1-1/2IN-PLUG (Spirax Sarco Inc Dba Spirax Sarco), 3886 (Alter Harry Co the Div of T E C) and 1 more.

What NSN replaces 4730-00-289-5943?

There are 4 known substitutes for 4730-00-289-5943: 3110-00-198-1007, 5360-00-546-0934, 5985-01-054-4746 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 973B197H01?

Key specifications for 973B197H01: Connection Style: PLAIN; Head Type: SOLID; Material: COPPER ALLOY OVERALL; Thread Series Designator: NPTF EXTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-289-5943 still in active supply?

NSN 4730-00-289-5943 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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