ELBOW,BOSS (P/N an939d4) - New Surplus
P/N: an939d4
Category: Fittings & Adapters
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 1 Available |
Product Description
The AN939D4 is an aluminum-alloy boss elbow that redirects fluid flow 90 degrees at threaded ports in aircraft hydraulic systems. This fitting features internal UNJF threads conforming to AS5190 specifications for reliable connections. Installed at hydraulic system access points where a right-angle boss connection is required, the elbow accommodates standard O-rings or gaskets to maintain pressure integrity.
Installation requires proper torque per the applicable maintenance manual. Common in general aviation and corporate aircraft hydraulic assemblies.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the ELBOW,BOSS (P/N an939d4)?
The AN939D4 is an aluminum-alloy boss elbow that redirects fluid flow 90 degrees at threaded ports in aircraft hydraulic systems. This fitting features internal UNJF threads conforming to AS5190 specifications for reliable connections.
Does the an939d4 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The ELBOW,BOSS conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
What material is the an939d4 manufactured from?
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the an939d4.
Can I order the an939d4 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The ELBOW,BOSS is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
Related Fittings & Adapters
- COUPLING – P/N an910-2
- UNION – P/N an832-3d
- ADAPTER – P/N C6PM1105-27
- UNION – P/N s1132-1
- ADAPTOR – P/N 23076-1100
- UNION – P/N SS-200-6-4AN
- TEE,PIPE TO TUBE – P/N ms20825-6j
- AUDIO ADAPTER BOX – P/N 101-342420-07
- REDUCER-SPECIAL – P/N 79869-002
- ADAPTER – P/N 2201105-1
- COUPLING ASSY – P/N w991-16de
- REDUCER – P/N an919-20j