AN919-15D - REDUCER, BOSS

NSN: 4730-00-187-3588, NIIN: 1873588
New Surplus, Sold Per Each

A Reducer, Boss is a threaded fitting used to connect two components with different thread sizes, allowing a larger port to adapt to a smaller one. Commonly used in hydraulic, pneumatic, and fluid systems, it ensures a secure, leak-tight connection while maintaining flow efficiency.

Specifications

Connection Style: Flared W/ Gasket Seal (Boss) All Ends
Connection Type: Threaded External Boss All Ends
Reducer Type: Concentric
Surface Treatment: Anodize
Material: Aluminum Alloy
Max Operating Pressure: 3000.0 Pounds Per Square Inch Single Response
Nominal Overall Length: 1.750"
Thread Class: 3A All Ends
Thread Series Designator: Unf Second End
Thread Series Designator: Unjf First End
Thread Size: 0.750" Second End
Thread Size: 0.875" First End
Operating Temp Max: 275.0° F Single Response

Part Number Info

Part Number: AN919-15D
Unpunctuated: AN91915D
NSN: 4730-00-187-3588
NIIN: 1873588

Potential Alternates: AN919-150, AS5174D1008, MS24399D16, 991915, 332-2031-160, AS4841, AS5174

Replaces Cancelled NSN: 4730-00-835-7277, 4730-00-684-7450

New Surplus: These parts are classified as new and unused, meaning they have not been installed or placed into service. However, they come without traceability or original manufacturer certifications, which might be required for certain high-level regulatory uses. Our company provides its own Certificate of Conformance (CoC) as a statement of assurance that the parts are in good working condition and have been sourced from reliable channels. These are ideal when the focus is on cost-effectiveness without compromising on quality.

Sold Per Each: This item is sold individually, with the price listed for a single unit. Perfect for purchasing the exact quantity needed without the requirement to buy in bulk. For larger quantities, consider reviewing any available bulk pricing options.

Alternate Part Numbers: Due to the nature of ever-evolving part numbering structure, multiple part numbers may meet the same specifications and performance standards. If only an alternate part number is available, we will contact you to confirm compatibility. We strongly recommend consulting the appropriate repair manuals to ensure accuracy before using an alternate part.

5305-00-281-8526

AN525-832R6 - SCREW, MACHINE, NEW SURPLUS, SOLD PER EACH, NSN: 5305-00-281-8526, NIIN: 2818526