The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-01-623-3886, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Bird-Johnson Propeller Company, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-623-3886 |
| Primary Part Number | 924-1-14 |
| Item Name | Tachometer,mechanical,fixed Moun |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Bird-Johnson Propeller Company, Llc |
| Status | ACTIVE |
| Material | PLASTIC CASE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 924-1-14 PRIMARY | Bird-Johnson Propeller Company, Llc (USA) |
| A1-47-70 FIGURE 01 ITEM 200 | Bird-Johnson Propeller Company, Llc (USA) |
| 924-1-14 | Rolls-Royce Plc Naval Marine (GBR) |
| 40071183 | Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt) (GBR) |
NSN 6680-01-623-3886 is a Tachometer,mechanical,fixed Moun, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-623-3886 has 4 manufacturer part numbers on file: 924-1-14 (Bird-Johnson Propeller Company, Llc), A1-47-70 FIGURE 01 ITEM 200 (Bird-Johnson Propeller Company, Llc), 924-1-14 (Rolls-Royce Plc Naval Marine), 40071183 (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)).
Key specifications for 924-1-14: Special Features: THE BLACK COLOURED KINEL IS REPLACED WITH A BROWN ARLON; Part Name Assigned by Controlling Agency: HP SPEED PROBE; End Item Identification: UPDATE; Material: PLASTIC CASE. 1 specification is 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.
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.