Library › Tri-clamp & pipe › Brass compression fittings (inch tube): tube OD, nut thread, hex and…

Brass compression nut envelope, 5/16 in tube

Brass compression nut envelope, 5/16 in tube: hex 0.56 in across flats × 0.44 in long, tube bore Ø7.94 mm (= tube OD); thread 1/2-24 is on the part but NOT drawn (internal thread and the sleeve seat are not published); standard pattern (the light-pattern nut is shorter, see page)

Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

From the full sheet

Brass compression fittings (inch tube): tube OD, nut thread, hex and length, 1/8 to 7/8 in: every size, notes, mating features and sources. What thread and hex size does a brass compression nut have for each tube OD?

Other sizes