Blue Fireball 2" Short Nosepiece / M48x0.75 Spacer Ring with 12.7mm (0.5") Extension

- This item is out of stock.
- We have no ETA from the manufacturer at this time.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
- This item is out of stock.
- We have no ETA from the manufacturer at this time.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
Lower 48 States:
Orders over $50 ship free within the Lower 48 using a carrier and service we select based on your items and delivery location. Faster shipping options may be available at checkout.
U.S. Outside the Lower 48 (AK, HI, PR):
Free shipping on orders over $50 applies to many—but not all—items. Add items to your cart and enter your ZIP code to see available shipping options and any costs.
International Orders:
Free shipping does not apply to international orders. You’ll see available shipping options and costs during checkout. Some items can’t be shipped internationally due to size or manufacturer restrictions. Duties, taxes, brokerage fees, and tariffs are not included and are the customer’s responsibility.
Description/Uses:
- 2" extension ring/barrel spacer
- Provides 0.5" (12.7mm) of spacing
- Allows you to securely set or vary the spacing between 2" components
- Useful for making eyepieces parfocal or to change the reduction factor of focal reducers
- Has standard 2" filter threads (male on one side and female on the other)
Features:
- Precision machined from aluminum and black anodized
- Threaded to accept standard 2" astronomy filters
Specifications:
- Total Length = 0.62" (15.7mm)
- Extension Provided = 0.5" (12.7mm)
- Length of External Male Thread = 0.12" (3mm)
- Thread Specification (External Thread) = M48x0.75 Male
- Length of Internal Female Thread = 0.39" (10mm)
- Thread Specification (Internal Thread) = M48x0.75 Female
- Maximum Outer Diameter = 2" (50.8mm)
- Weight = 0.3oz (9g)
Other Information
- Country of Manufacture: China
Description/Uses:
- 2" extension ring/barrel spacer
- Provides 0.5" (12.7mm) of spacing
- Allows you to securely set or vary the spacing between 2" components
- Useful for making eyepieces parfocal or to change the reduction factor of focal reducers
- Has standard 2" filter threads (male on one side and female on the other)
Features:
- Precision machined from aluminum and black anodized
- Threaded to accept standard 2" astronomy filters
Specifications:
- Total Length = 0.62" (15.7mm)
- Extension Provided = 0.5" (12.7mm)
- Length of External Male Thread = 0.12" (3mm)
- Thread Specification (External Thread) = M48x0.75 Male
- Length of Internal Female Thread = 0.39" (10mm)
- Thread Specification (Internal Thread) = M48x0.75 Female
- Maximum Outer Diameter = 2" (50.8mm)
- Weight = 0.3oz (9g)
Description/Uses:
- 2" extension ring/barrel spacer
- Provides 0.5" (12.7mm) of spacing
- Allows you to securely set or vary the spacing between 2" components
- Useful for making eyepieces parfocal or to change the reduction factor of focal reducers
- Has standard 2" filter threads (male on one side and female on the other)
Features:
- Precision machined from aluminum and black anodized
- Threaded to accept standard 2" astronomy filters
Specifications:
- Total Length = 0.62" (15.7mm)
- Extension Provided = 0.5" (12.7mm)
- Length of External Male Thread = 0.12" (3mm)
- Thread Specification (External Thread) = M48x0.75 Male
- Length of Internal Female Thread = 0.39" (10mm)
- Thread Specification (Internal Thread) = M48x0.75 Female
- Maximum Outer Diameter = 2" (50.8mm)
- Weight = 0.3oz (9g)
Other Information
- Country of Manufacture: China
| Product Status | closeout |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |


















