FITTING: 3 HOSE W/THREAD,1/4 N (P/N 1k31-4-6-4) - New Surplus

The 1k31-4-6-4 is a T-shaped instrument hose fitting with a 1/4-inch NPT threaded port and dual hose connections (3/8-inch and 1/4-inch). This brass fitting branches pneumatic lines in aircraft instrument systems, routing vacuum or pressure signals from engine sources to flight instruments. Commonly installed in general aviation and business aircraft pneumatic networks.

Secure with appropriate clamps and apply thread sealant per maintenance manual specifications.

What is the FITTING: 3 HOSE W/THREAD,1/4 N (P/N 1k31-4-6-4)?

The 1k31-4-6-4 is a T-shaped instrument hose fitting with a 1/4-inch NPT threaded port and dual hose connections (3/8-inch and 1/4-inch). This brass fitting branches pneumatic lines in aircraft instrument systems, routing vacuum or pressure signals from engine sources to flight instruments.

Is the 1k31-4-6-4 a PMA or OEM part?

The FITTING: 3 HOSE W/THREAD,1/4 N may be available as an OEM (Original Equipment Manufacturer) or PMA (Parts Manufacturer Approval) part depending on condition and source. Both carry FAA certification for airworthiness. Currently available in: New Surplus. Contact us for sourcing details.

Does the 1k31-4-6-4 include installation hardware?

Installation hardware requirements vary by application. Check your aircraft's Structural Repair Manual (SRM) or Illustrated Parts Catalog (IPC) for the complete installation kit requirements for the FITTING: 3 HOSE W/THREAD,1/4 N. We stock related hardware and can help identify companion parts.

Can the 1k31-4-6-4 be shipped internationally?

Yes, we ship airframe components worldwide. International orders typically arrive within 3-14 business days depending on destination. Export documentation and customs forms are included. Contact us for international shipping quotes on the 1k31-4-6-4.