# Jig, Piston Cutting, Ent, Non-Sterile
> **Product code: NNO** · Class I — Low Risk (general controls) · Ear, Nose, Throat · 21 CFR 874.3540
## Classification
- **FDA Product Code:** NNO
- **Device class:** Class I — Low Risk (general controls)
- **Regulation:** 21 CFR 874.3540
- **Review panel:** EN
- **Medical specialty:** Ear, Nose, Throat
- **Submission type:** 4
- **GMP exempt:** Y
- **Life sustaining:** N
- **Implant:** N
- **Third-party review:** N
## Definition

Prosthesis modification instrument for ossicular replacement surgery; see product code JXY.

## Market data
- **Cleared 510(k) submissions:** 0
- **Registered establishments:** 5
## Source
- [FDA Device Classification](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpcd/classification.cfm?ID=NNO)
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