Description
Insize 4121-1A2 – American Standard Thread Ring Gage, Go, 1/2-20UNF
L. Dewitt's SKU #: 4121-1A2 | Mfr Part #: 4121-1A2Insize 4121-1A2 is the GO ring gage for 1/2-20UNF external threads, class 2A to ANSI/ASME B1.2. A good thread screws fully through it, confirming the thread is not oversize; pair it with the matching NO GO ring gage.
Please note: This is the GO ring only. GO and NO GO gages are sold separately.
Key Features
- Thread size 1/2-20UNF, tolerance class 2A
- Made to ANSI/ASME B1.2
- GO member only; NO GO gage sold separately
- Manufacturer inspection certificate included
Technical Specifications
| Part Number | 4121-1A2 |
| Brand | Insize |
| Manufacturer Part Number | 4121-1A2 |
| Product Type | American Standard Thread Ring Gage, Go |
| Thread Size | 1/2-20UNF |
| Tolerance Class | 2A |
| Gage Member | GO |
| Standard | ANSI/ASME B1.2 |
| Certificate | Manufacturer inspection certificate |
| Availability | Ships direct from Insize; most items in stock. Ship date confirmed by email after you order. |
| Shipping Weight | 0.24 lb |
| Package Dimensions | 2.17IN L x 2.09IN W x 0.91IN H |
| UPC/EAN | 6928640359293 |
| Sold As | 1 Each |
What you'll also need
- Matching NO GO ring gage 4121-1A2N (sold separately)
Choosing between options
Other sizes & versions in this series
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Contact Information
Authorized Insize distributor
📍 Nationwide shipping | Live Oak, TX
Additional Information
Brand: |
Insize |
Manufacturer Part Number: |
4121-1A2 |
Product Family: |
Gages and Reference Tools |
Supplier Category Code: |
A |
EAN: |
6928640359293 |
Package Weight: |
0.24 lb |
Package Length: |
2.17 in |
Package Width: |
2.09 in |
Package Height: |
0.91 in |
Feature 1: |
Class 2A. |
Feature 2: |
GO Side |
Feature 3: |
Standard ANSI/ASME B1.2 |
Feature 4: |
Supplied with manufacturer inspection certificate. |
