PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

296-31Coupling,tube

Dukes Aerospace, Inc. · NSN 4730-00-911-6850 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-911-6850 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-911-6850. Primary manufacturer part number: 296-31.
Features
  • Coupling,tube — FSC 4730
  • Surface Treatment: ANODIZE OVERALL
  • Surface Treatment Document and Classification: MIL-A-8625 TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Nominal Overall Length: 0.615 INCHES IN
  • Thread Class: 2A FIRST END A
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES SECOND END IN
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN
  • Connection Style: PLAIN (TUBE) SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Coupling,tube, cataloged under National Stock Number 4730-00-911-6850, 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 Dukes Aerospace, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-911-6850
Primary Part Number296-31
Item NameCoupling,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDukes Aerospace, Inc.
StatusACTIVE
Surface TreatmentANODIZE OVERALL
Surface Treatment Document and ClassificationMIL-A-8625 TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Overall Length0.615 INCHES IN
Thread Class2A FIRST END A
Nominal Outside Diameter Tube Accommodated0.250 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Connection StylePLAIN (TUBE) SECOND END
Tubing Wall Nominal Thickness for Which Designed0.035 INCHES SECOND END IN
MaterialALUMINUM ALLOY 2024 OVERALL
Thread Series DesignatorUNF FIRST END
Material Document and ClassificationWW-T-785 T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Thread Size0.250 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5905-00-946-1921 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
3020-01-270-501729631 INTERCHANGEABLE
Gear,worm Wheel
Moog Inc. Dba Ampac-Isp Corp
6120-01-605-1562L605A10 INTERCHANGEABLE
Transformer,power
Aq Transformer Solutions Inc.
Cross-Reference Index
Part NumberManufacturer
296-31 PRIMARY Dukes Aerospace, Inc. (USA)
Related Parts
5905-00-946-1921INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
3020-01-270-5017INTERCHANGEABLE
GEAR,WORM WHEEL
29631
6120-01-605-1562INTERCHANGEABLE
TRANSFORMER,POWER
L605A10

Frequently Asked Questions

What is NSN 4730-00-911-6850?

NSN 4730-00-911-6850 is a Coupling,tube, manufactured by Dukes Aerospace, Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-911-6850?

NSN 4730-00-911-6850 has 1 cross-referenced part number: 296-31 (Dukes Aerospace, Inc.).

What NSN replaces 4730-00-911-6850?

There are 3 known substitutes for 4730-00-911-6850: 5905-00-946-1921, 3020-01-270-5017, 6120-01-605-1562. Verify interchangeability with system specifications before substitution.

What are the specifications of 296-31?

Key specifications for 296-31: Surface Treatment: ANODIZE OVERALL; Surface Treatment Document and Classification: MIL-A-8625 TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Overall Length: 0.615 INCHES IN; Thread Class: 2A FIRST END A. 12 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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