PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

196-00Nut,union

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4730-01-491-2628 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-491-2628 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-491-2628. Primary manufacturer part number: 196-00.
Features
  • Nut,union — FSC 4730
  • Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY OVERALL
  • Maximum Working Pressure Rating and Service for Which Designed: 250.0 POUNDS PER SQUARE INCH (PSI) WATER LBS
  • 5 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Nut,union, cataloged under National Stock Number 4730-01-491-2628, 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 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-491-2628
Primary Part Number196-00
Item NameNut,union
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Material Document and ClassificationMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
Maximum Working Pressure Rating and Service for Which Designed250.0 POUNDS PER SQUARE INCH (PSI) WATER LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3020-00-145-627819600 INTERCHANGEABLE
Gear,spur
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5985-00-761-3637 INTERCHANGEABLE
Dummy Load,electrical
3020-00-763-6904 INTERCHANGEABLE
Sprocket Wheel
3455-01-046-148650-10622 4533-G INTERCHANGEABLE
Reamer,machine
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
4820-01-290-105540444-404 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
6850-01-344-731219600 INTERCHANGEABLE
Silicone Compound
Illinois Tool Works Inc. Dba Illinois Tool Works Inc
4820-01-480-6689800659 INTERCHANGEABLE
Valve,regulating,system Pressure
Lee Evans Defense Pool Inc
4730-01-491-2301190-00 INTERCHANGEABLE
Tailpiece,union
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-499-336340444-408 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40444-4 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
196-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
64-300 FIND NO. 10 Shipyard Supply Co. (USA)
40444-4 FIND NO. 10 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
B14-300 Shipyard Supply Co. (USA)
Related Parts
3020-00-145-6278INTERCHANGEABLE
GEAR,SPUR
19600
5985-00-761-3637INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
3020-00-763-6904INTERCHANGEABLE
SPROCKET WHEEL
3455-01-046-1486INTERCHANGEABLE
REAMER,MACHINE
50-10622 4533-G
4820-01-290-1055INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40444-404
6850-01-344-7312INTERCHANGEABLE
SILICONE COMPOUND
19600
4820-01-480-6689INTERCHANGEABLE
VALVE,REGULATING,SYSTEM PRESSURE
800659
4730-01-491-2301INTERCHANGEABLE
TAILPIECE,UNION
190-00
4820-01-499-3363INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40444-408

Frequently Asked Questions

What is NSN 4730-01-491-2628?

NSN 4730-01-491-2628 is a Nut,union, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-491-2628?

NSN 4730-01-491-2628 has 5 cross-referenced part numbers: 40444-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 196-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 64-300 FIND NO. 10 (Shipyard Supply Co.), 40444-4 FIND NO. 10 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), B14-300 (Shipyard Supply Co.).

What NSN replaces 4730-01-491-2628?

There are 9 known substitutes for 4730-01-491-2628: 3020-00-145-6278, 5985-00-761-3637, 3020-00-763-6904 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 196-00?

Key specifications for 196-00: Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY OVERALL; Maximum Working Pressure Rating and Service for Which Designed: 250.0 POUNDS PER SQUARE INCH (PSI) WATER LBS; End Item Identification: NSN 4820-01-290-1055 - VALVE REGULATING. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com