Observed arrival · 2026-08-30
FittingKey, for the fitting that looks almost right
An open reference tool for identifying hydraulic and pneumatic fittings by thread diameter, pitch or threads per inch, and seat.
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Field notes
FittingKey organizes identification around three physical checks: thread dimensions, parallel-versus-tapered form, and the sealing seat. Its reference spans 110 sizes in 10 families, with examples ranging from -08 JIC and ORFS to BSPP, BSPT, metric DIN, JIS, and Komatsu. The site also records the limits of its data: 61 sizes include sourced working pressures, while 13 figures are excluded because only one published source could confirm them.
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○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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