Model: 0-521-220
Union NutSpecial Features:
Knurl 24 teeth per in. On outer surface
Properties:
An internally threaded nut which has an internal seat or shoulder designed to engage the nut retaining flange of a union tailpiece. The threaded portion is used to engage the thread piece of a union, union elbor or the like. Excludes nut (1), tube coupling.
Part 0-521-220 NSN 4730-00-032-7471
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
Freight Classification
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Schedule B and Export
- Schedule B: 7616106000
- SITC: 69440
- End Use: Finished metal shapes
- NAICS: 332722
- USDA: 1
Freight Class: Threaded fasteners of aluminum
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