PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-442Nut,tube Coupling

Mueller Brass Co. · NSN 4730-00-819-7647 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-819-7647 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-819-7647. Primary manufacturer part number: A-442.
Features
  • Nut,tube Coupling — FSC 4730
  • Material: COPPER ALLOY OVERALL
  • Nut Style: TUBE COUPLING
  • Width Across Flats: 1.000 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 16
  • Seat Angle: 20.00 DEGREES NOMINAL
  • Nut Height: 1.180 INCHES NOMINAL IN
  • Smallest Inside Diameter: 0.500 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Nut,tube Coupling, cataloged under National Stock Number 4730-00-819-7647, 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 Mueller Brass Co.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-819-7647
Primary Part NumberA-442
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMueller Brass Co.
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Nut StyleTUBE COUPLING
Width Across Flats1.000 INCHES NOMINAL IN
Thread Quantity Per Inch16
Seat Angle20.00 DEGREES NOMINAL
Nut Height1.180 INCHES NOMINAL IN
Smallest Inside Diameter0.500 INCHES NOMINAL IN
Thread SeriesUNF
Nominal Thread Size0.750 INCHES IN
Length to Shoulder0.562 INCHES NOMINAL IN
Nominal Tube Outside Diameter0.500 INCHES IN
Thread Class3B
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5999-00-086-1354N48 INTERCHANGEABLE
Heater,thermal Release
Rockwell Automation, Inc. Dba Rockwell Automation
3455-00-194-055858-10076 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5930-00-296-60419000S6501F74295TYPEA26A INTERCHANGEABLE
Switch,rotary
Naval Ship Systems Command
5120-00-596-0949N-48 INTERCHANGEABLE
Screwdriver and Wrench Assembly
Neuses P K Inc
5310-00-639-754453-310 INTERCHANGEABLE
Nut,plain,hexagon
Dresser Industries Inc Leroi Div
4730-01-321-6290807947009652138C9 INTERCHANGEABLE
Union,pipe
Electric Boat Corporation Div General Dynamics Electric Boat
5935-01-494-938201-0410823-00 INTERCHANGEABLE
Connector,plug,electrical
Whelen Engineering Company, Inc. Dba Whelen Engineering Co Inc Div Whelen Engineering Company
Cross-Reference Index
Part NumberManufacturer
A-442 PRIMARY Mueller Brass Co. (USA)
SAE-J513 Sae International Dba Sae International (USA)
SAE J513 8 010167B PRIMARY Sae International Dba Sae International (USA)
J513-8 010167B Society of Automotive Engineers Inc (USA)
N4-8 Mueller Brass Co. (USA)
5-13-2008-2-33 Drs Environmental Systems Inc (USA)
J513 Sae International Dba Sae International (USA)
5-13-2008-2-33 Keco Industries, Inc. (USA)
8 010167B Sae International Dba Sae International (USA)
5-13-2008-2-33 Hdt Expeditionary Systems Inc (USA)
J513 Society of Automotive Engineers Inc (USA)
8 010167B Society of Automotive Engineers Inc (USA)
J513-8 010167B Sae International Dba Sae International (USA)
Related Parts
5999-00-086-1354INTERCHANGEABLE
HEATER,THERMAL RELEASE
N48
3455-00-194-0558INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10076
5930-00-296-6041INTERCHANGEABLE
SWITCH,ROTARY
9000S6501F74295TYPEA26A
5120-00-596-0949INTERCHANGEABLE
SCREWDRIVER AND WRENCH ASSEMBLY
N-48
5310-00-639-7544INTERCHANGEABLE
NUT,PLAIN,HEXAGON
53-310
4730-01-321-6290INTERCHANGEABLE
UNION,PIPE
807947009652138C9
5935-01-494-9382INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
01-0410823-00

Frequently Asked Questions

What is NSN 4730-00-819-7647?

NSN 4730-00-819-7647 is a Nut,tube Coupling, manufactured by Mueller Brass Co., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-819-7647?

NSN 4730-00-819-7647 has 13 cross-referenced part numbers: A-442 (Mueller Brass Co.), SAE-J513 (Sae International Dba Sae International), SAE J513 8 010167B (Sae International Dba Sae International), J513-8 010167B (Society of Automotive Engineers Inc), N4-8 (Mueller Brass Co.) and 8 more.

What NSN replaces 4730-00-819-7647?

There are 7 known substitutes for 4730-00-819-7647: 5999-00-086-1354, 3455-00-194-0558, 5930-00-296-6041 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-442?

Key specifications for A-442: Material: COPPER ALLOY OVERALL; Nut Style: TUBE COUPLING; Width Across Flats: 1.000 INCHES NOMINAL IN; Thread Quantity Per Inch: 16. 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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