The Transmitter-Turn Gyro, cataloged under National Stock Number 6620-01-476-7355, is classified within Federal Supply Class 6620 (Engine Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Mid-Continent Instrument Co Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6620-01-476-7355 |
| Primary Part Number | 7125-2 |
| Item Name | Transmitter-Turn Gyro |
| FSC / FSG | 6620 / 66 — Engine Instruments |
| Manufacturer | Mid-Continent Instrument Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7125-2 PRIMARY | Mid-Continent Instrument Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 7125-2 | 5/9 Secondary reference Grimes Aerospace Company |
NSN 6620-01-476-7355 is a Transmitter-Turn Gyro, manufactured by Mid-Continent Instrument Co Inc, classified under FSC 6620, Engine Instruments. Status: active.
NSN 6620-01-476-7355 has 1 manufacturer part number on file: 7125-2 (Mid-Continent Instrument Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-618-3697. Verify interchangeability with system specifications before substitution.
Key specifications for 7125-2: End Item Identification: AB412 HELICOPTER. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6620-01-476-7355 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.