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Flexbar 19526 | Thread Ring Gage Set, Class 2A GO-NOGO | 4-40 UNC
Part Number : 19526
This Flexbar set, part 19526, checks 4-40 UNC external threads to Class 2A with GO and NOGO rings. Gauge tolerance is "X". Flexbar notes that Classes 2A and 2B are the usual choice for general-purpose fasteners, and the 19526 applies this to 4-40 UNC external threads.
Key features
- Thread size: 4-40 UNC
- Class 2A
- GO-NOGO ring gauge set
- "X" gauge tolerance
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