PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

968-4Nut,union

Rego Co a Marmon Group Co · NSN 4730-00-490-0614 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-490-0614 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-490-0614. Primary manufacturer part number: 968-4.
Features
  • Nut,union — FSC 4730
  • Shoulder Step Width: 0.188 INCHES NOMINAL IN
  • Nut Style: HEXAGON
  • Nominal Thread Size: 0.830 INCHES IN
  • Thread Quantity Per Inch: 14
  • Shoulder Width: 0.125 INCHES NOMINAL IN
  • Shoulder Seat Diameter: 0.188 INCHES MINIMUM IN
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy or Copper Alloy 360 Overall construction
General Description

The Nut,union, cataloged under National Stock Number 4730-00-490-0614, 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 Rego Co a Marmon Group Co. Government technical data includes 13 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-490-0614
Primary Part Number968-4
Item NameNut,union
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerRego Co a Marmon Group Co
StatusACTIVE
Shoulder Step Width0.188 INCHES NOMINAL IN
Nut StyleHEXAGON
Nominal Thread Size0.830 INCHES IN
Thread Quantity Per Inch14
Shoulder Width0.125 INCHES NOMINAL IN
Shoulder Seat Diameter0.188 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Width Across Flats0.938 INCHES MINIMUM IN
Smallest Inside Diameter0.568 INCHES MAXIMUM IN
Temp Rating-40.0 FAHRENHEIT NOMINAL DEGF
MaterialCOPPER ALLOY OR COPPER ALLOY 360 OVERALL
Nut Height0.125 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
Thread SeriesAMERICAN NATIONAL GAS OUTLET THREAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6625-00-059-85799684 INTERCHANGEABLE
Ohmmeter
Avo Intl
5342-00-259-93279684-061 INTERCHANGEABLE
End,stop Assembly
Kirsch Co
5998-00-317-5518 INTERCHANGEABLE
Circuit Card Assembly
3110-00-507-0026968400 INTERCHANGEABLE
Bearing,ball,annular
Alfa Laval Inc
5935-00-826-2536 INTERCHANGEABLE
Connector,receptacle,electrical
5930-00-948-8962 INTERCHANGEABLE
Switch,push
5950-01-022-045811732391 INTERCHANGEABLE
Reactor
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5120-01-590-1826 INTERCHANGEABLE
Screwdriver,cross Tip
Cross-Reference Index
Part NumberManufacturer
968-4 Rego Co a Marmon Group Co (USA)
968-4 Cryo-Chem Inc (USA)
Related Parts
6625-00-059-8579INTERCHANGEABLE
OHMMETER
9684
5342-00-259-9327INTERCHANGEABLE
END,STOP ASSEMBLY
9684-061
5998-00-317-5518INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3110-00-507-0026INTERCHANGEABLE
BEARING,BALL,ANNULAR
968400
5935-00-826-2536INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5930-00-948-8962INTERCHANGEABLE
SWITCH,PUSH
5950-01-022-0458INTERCHANGEABLE
REACTOR
11732391
5120-01-590-1826INTERCHANGEABLE
SCREWDRIVER,CROSS TIP

Frequently Asked Questions

What is NSN 4730-00-490-0614?

NSN 4730-00-490-0614 is a Nut,union, manufactured by Rego Co a Marmon Group Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-490-0614?

NSN 4730-00-490-0614 has 2 cross-referenced part numbers: 968-4 (Rego Co a Marmon Group Co), 968-4 (Cryo-Chem Inc).

What NSN replaces 4730-00-490-0614?

There are 8 known substitutes for 4730-00-490-0614: 6625-00-059-8579, 5342-00-259-9327, 5998-00-317-5518 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 968-4?

Key specifications for 968-4: Shoulder Step Width: 0.188 INCHES NOMINAL IN; Nut Style: HEXAGON; Nominal Thread Size: 0.830 INCHES IN; Thread Quantity Per Inch: 14. 13 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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