Model: 021-001-187
Union NutProperties:
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 021-001-187 NSN 4730-01-311-3922
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: 7318160000
- SITC: 69421
- End Use: Finished metal shapes
- NAICS: 332722
- USDA: 1
Freight Class: Nuts of iron or steel
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