16221NOS Bottle Nut Adapter -4AN-660 [Anodized Black]

Name: 16221NOS Bottle Nut Adapter -4AN-660 [Anodized Black]
Brand: NOS
SKU: 741-16221NOS
Price: 22.37 USD
Availability: InStock

^$22³⁷

2 left in stock

Ships on Sep 08, 2026

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Bottle Nut Adapters

Bottle Nut Adapter

-4AN

Fits 660-Style Bottle Valves

7075 Aluminum

Anodized Black

Sold Individually

NOS INC/HOLLEY 16221NOS Features:

NOS bottle nut adapters allow you to connect your nitrous bottle to various sizes of AN braided lines for easy plumbing. This CNC machined 7075 aluminum bottle nut offers light weight with high strength and durability.

Made from 7075 aluminum for high strength and durability
Black anodized finish for great looks and corrosion resistance
Fits 660-style bottle valves
Radius exit for maximum flow
Lighter weight versus chrome plated bottle nuts
Available in -4, -6 & -8 AN sizes
CGA #660 Internal Threads

Part TypeNitrous Bottle Nut

BrandNOS

Package Height1.45

Package Width3.2

Package Length4.1

Weight0.1 PG

Part CategoryPerformance Parts

Vendor Part Number16221NOS

Package Qty1

Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations

16221NOS Bottle Nut Adapter -4AN-660 [Anodized Black]

NOS INC/HOLLEY 16221NOS Features:

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