34-448-1 Threaded Pipe Ring 1/2-14" NPT, Class L1 by SPI

34-446-5 Threaded Pipe Ring 1/4-18" NPT, Class L1 by SPI

34-445-7 Threaded Pipe Ring 1/8-27" NPT, Class L1 by SPI

34-454-9 Threaded Pipe Ring 2-1/2-8" NPT, Class L1 by SPI

34-453-1 Threaded Pipe Ring 2-11-1/2" NPT, Class L1 by SPI

34-449-9 Threaded Pipe Ring 3/4-14" NPT, Class L1 by SPI

34-447-3 Threaded Pipe Ring 3/8-18" NPT, Class L1 by SPI

441110010 Threaded Pipe Ring, 1-11-1/2" NPT, Class L1, Tool Steel, NIST by Vermont Gage

441107010 Threaded Pipe Ring, 1/2-14" NPT, Class L1, Tool Steel, NIST by Vermont Gage

441104010 Threaded Pipe Ring, 1/4-18" NPT, Class L1, Tool Steel, NIST by Vermont Gage

441102510 Threaded Pipe Ring, 1/8-27" NPT, Class L1, Tool Steel, NIST by Vermont Gage

441108510 Threaded Pipe Ring, 3/4-14" NPT, Class L1, Tool Steel, NIST by Vermont Gage

23-115-9 Threaded Ring Gage #1-64 Thread, Class 2A, Go & No Go by SPI

23-117-5 Threaded Ring Gage #1-72 Thread, Class 2A, Go & No Go by SPI

23-143-1 Threaded Ring Gage #10-24 Thread, Class 2A, Go & No Go by SPI

23-145-6 Threaded Ring Gage #10-32 Thread, Class 2A, Go & No Go by SPI

23-147-2 Threaded Ring Gage #12-24 Thread, Class 2A, Go & No Go by SPI

23-149-8 Threaded Ring Gage #12-28 Thread, Class 2A, Go & No Go by SPI

23-119-1 Threaded Ring Gage #2-56 Thread, Class 2A, Go & No Go by SPI

23-123-3 Threaded Ring Gage #3-48 Thread, Class 2A, Go & No Go by SPI

23-125-8 Threaded Ring Gage #3-56 Thread, Class 2A, Go & No Go by SPI

23-127-4 Threaded Ring Gage #4-40 Thread, Class 2A, Go & No Go by SPI

23-129-0 Threaded Ring Gage #4-48 Thread, Class 2A, Go & No Go by SPI

23-131-6 Threaded Ring Gage #5-40 Thread, Class 2A, Go & No Go by SPI

23-133-2 Threaded Ring Gage #5-44 Thread, Class 2A, Go & No Go by SPI