PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1290-8BNut,tube Coupling

Danfoss Power Solutions II, Llc · NSN 4730-00-684-7252 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-684-7252 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-684-7252. Primary manufacturer part number: 1290-8B.
Features
  • Nut,tube Coupling — FSC 4730
  • Nut Style: TUBE COUPLING
  • Nut Height: 0.840 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 16
  • Material: COPPER ALLOY 360 OVERALL
  • Nominal Tube Outside Diameter: 0.500 INCHES IN
  • Thread Class: 2B
  • Length to Shoulder: 0.723 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 4730-00-684-7252, 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 Danfoss Power Solutions II, Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-684-7252
Primary Part Number1290-8B
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusCANCELLED
Nut StyleTUBE COUPLING
Nut Height0.840 INCHES NOMINAL IN
Thread Quantity Per Inch16
MaterialCOPPER ALLOY 360 OVERALL
Nominal Tube Outside Diameter0.500 INCHES IN
Thread Class2B
Length to Shoulder0.723 INCHES NOMINAL IN
Nominal Thread Size0.750 INCHES IN
Thread DirectionRIGHT-HAND
Smallest Inside Diameter0.570 INCHES NOMINAL IN
Fabrication MethodMACHINED
Thread SeriesUNF
Width Across Flats0.875 INCHES NOMINAL IN
Seat Angle37.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
4730-00-401-371310BTXB INTERCHANGEABLE
Nut,tube Coupling
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4730-00-555-2895 INTERCHANGEABLE
Nut,tube Coupling
4730-00-618-85895BTX-B INTERCHANGEABLE
Nut,tube Coupling
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4730-00-889-61102BTXB INTERCHANGEABLE
Nut,tube Coupling
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4730-00-897-2042 INTERCHANGEABLE
Nut,tube Coupling
4730-00-947-297516BTXB INTERCHANGEABLE
Nut,tube Coupling
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4730-00-952-31196BTXB INTERCHANGEABLE
Nut,tube Coupling
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4730-00-965-1186SAE J514/1 12 070110B INTERCHANGEABLE
Nut,tube Coupling
Sae International Dba Sae International
4730-01-010-014316BTXD INTERCHANGEABLE
Nut,tube Coupling
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4730-01-223-2492 INTERCHANGEABLE
Nut,tube Coupling
Cross-Reference Index
Part NumberManufacturer
8 070110B Society of Automotive Engineers Inc (USA)
8BTX Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
11240409 Ballistic Missile Defense Systems Command (USA)
1290-8B PRIMARY Danfoss Power Solutions II, Llc (USA)
8BTXB PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
4730PL0836065 Jednolity Indeks Materialowy - Uniform Material Index (POL)
8BTXB Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
8BTX Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
J514 Society of Automotive Engineers Inc (USA)
CV0682-002 Northrop Grumman Corp Electronic Systems Defensive System Div (USA)
8BTXB Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
841FSB08 Imperial (USA)
11240409-2 Ballistic Missile Defense Systems Command (USA)
717899-302 Raytheon Company Div Rmd Strategic (USA)
8BTX PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
Related Parts
4730-00-401-3713INTERCHANGEABLE
NUT,TUBE COUPLING
10BTXB
4730-00-555-2895INTERCHANGEABLE
NUT,TUBE COUPLING
4730-00-618-8589INTERCHANGEABLE
NUT,TUBE COUPLING
5BTX-B
4730-00-889-6110INTERCHANGEABLE
NUT,TUBE COUPLING
2BTXB
4730-00-897-2042INTERCHANGEABLE
NUT,TUBE COUPLING
4730-00-947-2975INTERCHANGEABLE
NUT,TUBE COUPLING
16BTXB
4730-00-952-3119INTERCHANGEABLE
NUT,TUBE COUPLING
6BTXB
4730-00-965-1186INTERCHANGEABLE
NUT,TUBE COUPLING
SAE J514/1 12 070110B
4730-01-010-0143INTERCHANGEABLE
NUT,TUBE COUPLING
16BTXD
4730-01-223-2492INTERCHANGEABLE
NUT,TUBE COUPLING
4730-01-252-1684INTERCHANGEABLE
NUT,TUBE COUPLING

Frequently Asked Questions

What is NSN 4730-00-684-7252?

NSN 4730-00-684-7252 is a Nut,tube Coupling, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-684-7252?

NSN 4730-00-684-7252 has 15 cross-referenced part numbers: 8 070110B (Society of Automotive Engineers Inc), 8BTX (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 11240409 (Ballistic Missile Defense Systems Command), 1290-8B (Danfoss Power Solutions II, Llc), 8BTXB (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division) and 10 more.

What NSN replaces 4730-00-684-7252?

There are 11 known substitutes for 4730-00-684-7252: 4730-00-401-3713, 4730-00-555-2895, 4730-00-618-8589 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1290-8B?

Key specifications for 1290-8B: Nut Style: TUBE COUPLING; Nut Height: 0.840 INCHES NOMINAL IN; Thread Quantity Per Inch: 16; Material: COPPER ALLOY 360 OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-684-7252 still in active supply?

NSN 4730-00-684-7252 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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