Discussion Overview
The discussion centers around the meaning of the markings "NOH-F" found on fuel hoses, exploring potential specifications, material properties, and related standards. Participants delve into the implications of these markings in the context of fuel and oil applications.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant notes that "NOH-F" appears on many fuel hoses and questions its meaning, suggesting it might be a specification.
- Another participant proposes that "F" indicates the hose is rated for fuel and electrically conductive to prevent static electricity discharge, while "NOH" is not recognized as a standard code.
- A different participant mentions that hoses typically have a marking showing SAE 30 followed by numbers.
- One participant speculates that the numbers might indicate the bend radius of the hose, although they express uncertainty about the unit of measurement.
- Another participant suggests that "NOH-F" could represent an industry rating for hose material and its chemical/temperature resistance, with the numbers possibly indicating a manufacturer's style or class number.
- A participant explains that internal diameters of hoses are specified in multiples of 1/16", linking the markings to the hose's internal diameter and construction style.
Areas of Agreement / Disagreement
Participants express various interpretations of the markings, with no consensus reached on the exact meaning of "NOH-F" or the significance of the accompanying numbers. Multiple competing views remain regarding the specifications and implications of these markings.
Contextual Notes
Some assumptions about the meanings of the markings and their relevance to specific applications remain unresolved, and participants rely on different interpretations of industry standards and manufacturer codes.
