REDUCER,BOSS (P/N ms21916d12-4) - New Surplus
P/N: ms21916d12-4
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 MS21916D12-4 is a reducer boss fitting for aircraft hydraulic systems. This fitting adapts larger component ports to smaller flareless tube connections using a gasketed seal interface. Manufactured to MS21916 specifications (now SAE AS21916), it provides reliable pressure-tight connections at hydraulic manifolds and component interfaces.
Installation requires torque per aircraft maintenance manual specifications and applicable MS/AS fitting standards. Commonly used in general aviation and commercial aircraft hydraulic plumbing where port size reduction is necessary.
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 REDUCER,BOSS (P/N ms21916d12-4)?
The MS21916D12-4 is a reducer boss fitting for aircraft hydraulic systems. This fitting adapts larger component ports to smaller flareless tube connections using a gasketed seal interface.
Does the ms21916d12-4 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The REDUCER,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 ms21916d12-4 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 ms21916d12-4.
Can I order the ms21916d12-4 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The REDUCER,BOSS is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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