PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6594Nut,tube Coupling

La Gary Co · NSN 4730-00-401-9248 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-401-9248 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-401-9248. Primary manufacturer part number: 6594.
Features
  • Nut,tube Coupling — FSC 4730
  • Width Across Flats: 1.188 INCHES NOMINAL IN
  • Seat Angle: 45.00 DEGREES NOMINAL
  • Material: STEEL CORROSION RESISTING OVERALL
  • Nominal Thread Size: 1.000 INCHES IN
  • Smallest Inside Diameter: 0.755 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 14
  • Nut Height: 2.188 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 4730-00-401-9248, 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 La Gary 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-401-9248
Primary Part Number6594
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerLa Gary Co
StatusACTIVE
Width Across Flats1.188 INCHES NOMINAL IN
Seat Angle45.00 DEGREES NOMINAL
MaterialSTEEL CORROSION RESISTING OVERALL
Nominal Thread Size1.000 INCHES IN
Smallest Inside Diameter0.755 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Thread Quantity Per Inch14
Nut Height2.188 INCHES NOMINAL IN
Nut StyleTUBE COUPLING
Thread SeriesUNS
Thread DirectionRIGHT-HAND
Thread Class2B
Nominal Tube Outside Diameter0.750 INCHES IN
Thread Pitch Diameters+0.9536 TO 0.9585 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5977-00-277-34856594 INTERCHANGEABLE
Brush Assembly
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5330-00-599-726146007 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
4820-00-650-024610319 INTERCHANGEABLE
Disk,valve
Fournier Rubber & Supply Co Div Fournier Rubber & Supply
2530-01-076-0235GBSN1132 INTERCHANGEABLE
Retainer,brake Shoe Hold Down Sp
R.e. Atckison Co., Inc.
6515-01-561-2556CA9386 INTERCHANGEABLE
Stockinet,surgical
Performance Health Supply, Llc Dba Sammons Preston Rolyan
Cross-Reference Index
Part NumberManufacturer
6594 La Gary Co (USA)
6594 Cummins Inc. (USA)
Related Parts
5977-00-277-3485INTERCHANGEABLE
BRUSH ASSEMBLY
6594
5330-00-599-7261INTERCHANGEABLE
SEAL,PLAIN ENCASED
46007
4820-00-650-0246INTERCHANGEABLE
DISK,VALVE
10319
2530-01-076-0235INTERCHANGEABLE
RETAINER,BRAKE SHOE HOLD DOWN SP
GBSN1132
6515-01-561-2556INTERCHANGEABLE
STOCKINET,SURGICAL
CA9386

Frequently Asked Questions

What is NSN 4730-00-401-9248?

NSN 4730-00-401-9248 is a Nut,tube Coupling, manufactured by La Gary Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-401-9248?

NSN 4730-00-401-9248 has 2 cross-referenced part numbers: 6594 (La Gary Co), 6594 (Cummins Inc.).

What NSN replaces 4730-00-401-9248?

There are 5 known substitutes for 4730-00-401-9248: 5977-00-277-3485, 5330-00-599-7261, 4820-00-650-0246 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6594?

Key specifications for 6594: Width Across Flats: 1.188 INCHES NOMINAL IN; Seat Angle: 45.00 DEGREES NOMINAL; Material: STEEL CORROSION RESISTING OVERALL; Nominal Thread Size: 1.000 INCHES IN. 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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