NSN 4730-00-287-0289 NIIN — Tube Coupling Nut

National Stock number : 4730-00-287-0289

Tube Coupling Nut


Available Quantity 13,709
Available Conditions NE NS AR SV OH
Classification Hose, Pipe, Tube, Lubrication and Railing Fittings - FSC 4730
Schedule B 7609000000
Stock Check Date 01/12/2026
Part-Number.info Quality System
  •   ISO 9001:2015 + AS9120B Certifed
  •   Audited supply chain
  •   Counterfeit Parts Prevention
  •   100% Product Inspections
  •   7 Year Record Retention
  •   HAZMAT Certified
  •   ITAR and DDTC Registered
AS9120 Certified Supplier

Product Properties


Description

Tube Coupling Nut

Thread Class

3b

Thread Direction

RIGHT-Hand

Fabrication Method

any acceptable

Nut Style

tube coupling

Nut Height

0.620in. ⁓5/8"

End Item Identification

B-1 aircraft support equipment. B-52 aircraft support equipment. TF33-P-3/5/9 (c/EC-135, B-52H) aircraft engine. H-3 helicopter support equipment.

Width Across Flats

0.563in. ⁓37/64"

Length To Shoulder

0.532in.

Smallest Inside Diameter

0.305in.

Thread Series

unf

Thread Quantity Per Inch

20

Nominal Thread Size

0.438in. ⁓29/64"

Nominal Tube Outside Diameter

0.250in.

Criticality Code Justification

feat

Special Features

weapon system essential. grumman A-10 aircraft

Material

aluminum alloy

Surface Treatment

anodize

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National Stock Number
4730-00-287-0289
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