Description
Insize 4121-81 – American Standard Thread Ring Gage, Go, 8-32UNC
L. Dewitt's SKU #: 4121-81 | Mfr Part #: 4121-81Insize 4121-81 is the GO ring gage for 8-32UNC 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 8-32UNC, 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 | 4121-81 |
| Brand | Insize |
| Manufacturer Part Number | 4121-81 |
| Product Type | American Standard Thread Ring Gage, Go |
| Thread Size | 8-32UNC |
| 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 | 0.07 lb |
| Package Dimensions | 2.24IN L x 2.13IN W x 0.87IN H |
| UPC/EAN | 6928640359101 |
| Sold As | 1 Each |
What you'll also need
- Matching NO GO ring gage 4121-81N (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: |
4121-81 |
Product Family: |
Gages and Reference Tools |
Supplier Category Code: |
A |
EAN: |
6928640359101 |
Package Weight: |
0.07 lb |
Package Length: |
2.24 in |
Package Width: |
2.13 in |
Package Height: |
0.87 in |
Feature 1: |
Class 2A. |
Feature 2: |
GO Side |
Feature 3: |
Standard ANSI/ASME B1.2 |
Feature 4: |
Supplied with manufacturer inspection certificate. |
