Description
Insize 4121-1A1N – American Standard Thread Ring Gage, No Go, 1/2-13UNC
L. Dewitt's SKU #: 4121-1A1N | Mfr Part #: 4121-1A1NInsize 4121-1A1N is the NO GO ring gage for 1/2-13UNC external threads, class 2A to ANSI/ASME B1.2. It checks that the pitch diameter is not below the minimum limit: a good thread should not screw into it. Pair it with the matching GO ring gage.
Please note: This is the NO GO ring only. GO and NO GO gages are sold separately.
Key Features
- Thread size 1/2-13UNC, tolerance class 2A
- Made to ANSI/ASME B1.2
- NO GO member only; GO gage sold separately
- Manufacturer inspection certificate included
Technical Specifications
| Part Number | 4121-1A1N |
| Brand | Insize |
| Manufacturer Part Number | 4121-1A1N |
| Product Type | American Standard Thread Ring Gage, No Go |
| Thread Size | 1/2-13UNC |
| Tolerance Class | 2A |
| Gage Member | NO 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 | 0.21 lb |
| Package Dimensions | 2.17IN L x 2.09IN W x 0.91IN H |
| UPC/EAN | 6928640359378 |
| Sold As | 1 Each |
What you'll also need
- Matching GO ring gage 4121-1A1 (sold separately)
Choosing between options
Other sizes & versions in this series
Request a Quote
Need volume pricing or help matching the right Insize part?
Send the part number, quantity and thread size, pitch, class and GO / NO GO — we reply the same day.
Contact Information
Authorized Insize distributor
📍 Nationwide shipping | Live Oak, TX
Additional Information
Brand: |
Insize |
Manufacturer Part Number: |
4121-1A1N |
Product Family: |
Gages and Reference Tools |
Supplier Category Code: |
A |
EAN: |
6928640359378 |
Package Weight: |
0.21 lb |
Package Length: |
2.17 in |
Package Width: |
2.09 in |
Package Height: |
0.91 in |
Feature 1: |
Class 2A. |
Feature 2: |
NOGO Side |
Feature 3: |
Standard ANSI/ASME B1.2 |
Feature 4: |
Supplied with manufacturer inspection certificate. |
