My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

NOS 16221NOS Black Anodized 4AN Nitrous Bottle Adapter Nut

Part of: NOS Nitrous Bottle Nut Adapters

Other options in this family: NOS 16233NOS NOS 16226NOS NOS 16235NOS

Manufacturer

Picture for manufacturer NOS

Part Number

16221NOS
7 reviews
Sale Price

$22.37

In Stock (5)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The NOS 16221NOS is a high-performance bottle adapter nut designed to connect -4AN nitrous lines to standard 660-style nitrous oxide bottle valves. Precision-machined from aerospace-grade T7075 aluminum, this adapter delivers exceptional strength while significantly reducing weight compared to traditional chrome-plated brass bottle nuts.

Key Features:

  • CGA #660 internal threads for secure connection to standard nitrous bottle valves
  • -4AN male flare fitting for direct line connection
  • T7075 aluminum construction provides superior strength-to-weight ratio
  • Black anodized finish resists corrosion and delivers a professional appearance
  • Radius exit design maximizes nitrous flow for optimal performance
  • Lightweight design reduces overall system weight

This adapter nut is an essential component for any nitrous oxide system installation, providing a reliable, leak-free connection between your nitrous bottle and feed line. The precision threading ensures proper sealing when used with appropriate gaskets or seals.

Products specifications

A Side

Type 660

Adapter AN Size ( B )

4 AN MALE

Adapter Size ( A )

1 inch

Adapter Size ( B )

-4

B Side

4AN

Brand

NOS

Category

Air and Fuel Delivery

Color

Black

Emission Code

4

Finish

Anodized Black

Fitting Attachment 1

Female threads

Fitting Attachment 2

Male threads

Material

7075 Aluminum

Part Type

Nitrous Oxide Bottle

Product Type

Nitrous Bottle Nut Adapter

Sub Category

Nitrous Oxide Injection System

Warranty

Manufacturer's Limited 90 Day Warranty

Struts came in on Saturday morning Feb. 6th pulled the old one's off and installed the new ones in about 2 1/2 hours. Camry rides like new again

Easy, quick, convenient. What else could i ask for? Nothing! Thanks guys.

Easy and fast, good price & quality, excellent experience Tanks

Ok...so in the description...it specifically stated skid plate. Also, the supplied picture was of the front skid plate...so that's what I thought I was ordering. I did not receive a skid plate. I received a small bracket for under the transmission mount. Nothing like what I thought I was ordering. I will be sending it back and requesting a refund.

To be determined..

Problems with Paying and My Paypal would have been easier, tried to pay this method 6-7 times, and Gave up.

They have hard-to-find items that ship immediately, excellent turn-around time on the orders. I look here first.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy