# NSN 6680-01-490-4443: Indicator, Electrical Tachometer

NSN 6680-01-490-4443 (also written 6680014904443; NIIN 01-490-4443) is an indicator, electrical tachometer in Federal Supply Class 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. 6 manufacturer part numbers from 4 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 6680-01-490-4443 (6680014904443)
- NIIN: 01-490-4443 (014904443)
- Item name: INDICATOR,ELECTRICAL TACHOMETER
- Federal Supply Class: [FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments](https://nsnexplorer.com/fsc/6680/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABGL | WIDTH | INCHES NOMINAL 2.750 |
| ABKQ | CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | INCHES NOMINAL 4.500 |
| ABKR | CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | INCHES NOMINAL 2.120 |
| ABRY | LENGTH | INCHES NOMINAL 5.000 |
| ABTB | MOUNTING HOLE DIAMETER | INCHES NOMINAL 0.156 |
| AEJZ | DEPTH | INCHES NOMINAL 5.750 |
| AFRA | CONTACT QUANTITY | 15 |
| AGAV | END ITEM IDENTIFICATION | LOS ANGELES CLASS SSN (688) |
| AKSF | CONTACT TYPE | SOCKET |
| AMNL | PRESENTATION TYPE | DIGITAL DISPLAY |
| ANRL | MOUNTING ARRANGEMENT STYLE | — |
| ASKX | ELECTRICAL CONNECTION QUANTITY | 1 |
| AXHR | MOUNTING FACILITY TYPE AND QUANTITY | UNTHREADED HOLE(S) 4 |
| BFQP | DISPLAY DIGIT QUANTITY | 6 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | DIGITAL SHAFT REVOLUTION CONTROL WITH EMI SUPPRESSION AND HUMIDITY SEALING FEATURES MODEL PK420-1 |
| FEAT | SPECIAL FEATURES | 120V AC LINE AND 120V AC NEUTRAL; +12 V DC OUTPUT |
| MATT | MATERIAL | CASE ALUMINUM |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 437-7015396-105 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 437-8357206-011 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B2094 | 20049 | THE ELECTRIC TACHOMETER CORP. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H749-7721-105 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| PK420-1 | 12763 | DYNALEC CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| PK420-1 | 20049 | THE ELECTRIC TACHOMETER CORP. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A5-27-T-2194 | 1 | 2026-11-12 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6680014904443&category=nsn) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-05 | [SPE4A126V1406](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6680014904443) | INDICATOR, ELECTRICA | DYNALEC CORPORATION | $35,084.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6680014904443&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6680014904443
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

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